How to write a silica exposure control plan for small construction

Last updated 2026-07-09

What exactly does OSHA require in a silica exposure control plan?

The list is shorter than most contractors expect. 29 CFR 1926.1153(g) spells out the minimum contents, and it fits on a single page.

OSHA's silica rule for construction (effective September 23, 2017) requires a written Exposure Control Plan (ECP) whenever workers perform tasks that could expose them to respirable crystalline silica at or above the action level of 25 micrograms per cubic meter (µg/m³) as an 8-hour time-weighted average ^[1]. The plan has to identify each task with potential exposure, the engineering and work practice controls used for each task, the respiratory protection used when controls aren't enough, and the procedures to restrict access to high-exposure areas ^[2].

The plan also names a competent person who can spot existing and predictable silica hazards and who has authority to fix them. That can be you, the owner, if you've trained yourself on silica hazards. No certified industrial hygienist. No outside consultant.

Here's the part that saves small crews real money: the rule does not require air monitoring for most construction tasks. OSHA built Table 1 (next section) so you can skip sampling entirely as long as you follow the prescribed controls.

The written plan stays at the job site, goes to any employee who asks, and gets updated whenever tasks or controls change. There's no mandatory format, no required forms, no signature block. A one-page Word document works fine for a crew that drills concrete and nothing else.

What is OSHA Table 1 and why does it matter for your plan?

Table 1 is the most useful thing OSHA published for construction silica compliance. It lists 18 common construction tasks (cutting, grinding, jackhammering, sweeping, and more), pairs each one with specific engineering controls (wet methods, local exhaust ventilation, vacuum attachments), and tells you which respirator to use once those controls are in place ^[1].

Follow the Table 1 controls for a task and OSHA presumes your workers are below the permissible exposure limit (PEL) of 50 µg/m³. No air measurement. No industrial hygienist. You document that you're doing it, and that's the compliance path.

That's the whole trick. For most small construction companies, the Exposure Control Plan is a written promise to use the Table 1 controls. List the tasks your crew does, point to the Table 1 row, name the specific equipment (make and model if you want to be precise), and the core work is done.

For tasks not on Table 1, you have two paths: run air monitoring and compare results to the PEL (50 µg/m³) and action level (25 µg/m³), or use objective data (published exposure data for similar tasks) to show exposure sits below the action level. For a small contractor doing standard work, staying inside Table 1 is almost always the easier road.

A few tasks trip people up because they don't realize they're on the list: mixing dry mortar, running a handheld grinder on concrete without a shroud and vacuum, and dry sweeping concrete. All three appear on Table 1 with plain controls.

What are the silica exposure limits OSHA enforces?

Two numbers run the whole rule. The PEL is 50 µg/m³ as an 8-hour TWA. Go over it and that's a direct violation. The action level is 25 µg/m³ as an 8-hour TWA, and hitting it triggers the extra requirements: medical surveillance after 30 days of exposure at or above the action level in a year, plus the written ECP itself ^[1].

Here's the scale of the gap. A worker grinding concrete without controls can hit 300 to 3,000 µg/m³ or more, depending on the task and the stone ^[3]. Uncontrolled grinding runs 6 to 60 times the legal limit.

OSHA uses µg/m³ (micrograms of respirable crystalline silica per cubic meter of air). Older documents sometimes use mg/m³ (milligrams). The PEL of 50 µg/m³ is the same as 0.05 mg/m³, same number, different scale. Don't let that confusion bite you in old training slides.

The medical surveillance threshold surprises small employers, so call it out on its own. A worker exposed at or above the action level for 30 or more days a year has to be offered a medical exam every three years, and the employer pays for it ^[2].

Who needs to be named as the competent person and what do they have to know?

The competent person requirement lives in 29 CFR 1926.1153(g)(4). OSHA defines the role as someone capable of identifying existing and predictable silica hazards in the surroundings or working conditions, with the authority to take prompt corrective action.

For most small contractors, that's the site supervisor, the foreman, or the owner. The silica rule sets no certification and no minimum training hours for this role (unlike the scaffolding or excavation standards, which set higher bars). What the person actually has to know: which tasks kick up silica dust, what respirable crystalline silica is and why it hurts you, how to confirm wet methods are working, how to check that vacuum shrouds are seated and filters aren't clogged, and when to call for respiratory protection.

OSHA's silica page has free online training, including a respirator training course at no cost ^[4]. The agency also runs a silica eTool that walks through the Table 1 tasks. Neither is required. Both are worth 90 minutes if you're the one writing the plan.

Name one person per site in the plan, not a job title. If that person leaves, update the plan. Inspectors check for this.

How do you write the actual plan, section by section?

No consultant needed. Here's what goes in each section and how much detail actually earns its keep.

Section 1: Scope and purpose. One paragraph. State that the plan covers silica-generating tasks on your projects, references 29 CFR 1926.1153, and applies to every employee who performs or works near those tasks. Done.

Section 2: Competent person. Name the person, their title, and a phone number. Add one sentence granting them authority to halt work if controls fail.

Section 3: Task inventory. List every task your crew does that makes silica dust. Walk through a typical project scope and write down each activity. Common ones: saw-cutting concrete, coring, grinding, jackhammering, running a rotary hammer, hand-mixing mortar, and cleanup. If a task makes no silica (framing with lumber, painting), leave it off.

Section 4: Controls by task. For each task in Section 3, write the Table 1 control next to it. Be specific about equipment. "Angle grinder with HEPA vacuum shroud, airflow confirmed before use" beats "vacuum." Specificity helps your competent person check the work and helps you in an inspection.

Section 5: Respiratory protection. For Table 1 tasks where controls alone don't get you below the PEL, or for any task where you can't fully run the Table 1 controls, name the respirator type (at minimum a NIOSH-approved filtering facepiece, usually a half-mask P100 or N95). Point to your written hazard communication program if you have one, since the SDS documents for silica-containing materials belong in that mix.

Section 6: Housekeeping. State that dry sweeping and dry brushing are prohibited for cleanup of silica-containing materials. Wet methods or HEPA vacuums only. This sits in 29 CFR 1926.1153(f).

Section 7: Medical surveillance. Describe when you'll offer exams (a worker hits 30 days a year at or above the action level), who pays (employer), and what the exam covers (health history questionnaire, physical exam by a PLHCP, and a chest X-ray if the physician recommends it).

Section 8: Training. State that every employee who may be exposed above the action level gets trained before starting covered tasks and at least once a year after. The topics live in 29 CFR 1926.1153(i): health effects of silica, tasks that create exposure, the controls in use, and the contents of the ECP itself.

Section 9: Recordkeeping. Air monitoring records (if any) are kept 30 years, and objective data records are kept 30 years. Training records have no set retention period in the silica rule, but three years is standard practice.

If you'd rather not build this from a blank page, SafetyFolio's safety program generator produces a site-specific silica ECP in about 15 minutes by walking through your task list and filling in the Table 1 controls for you.

Reviewing and updating. Put a revision date on the plan. Review it whenever your scope of work changes, your equipment changes, or a new silica-generating task lands on your projects. An annual review is smart even in a quiet year.

What engineering controls actually work for the most common tasks?

Table 1 is the authority, but here's what you'd actually buy and do, in plain terms.

Concrete cutting with a walk-behind saw. Use integrated water delivery that feeds the blade continuously. Water kills dust at the source. The saw needs to keep moving to stay wet. Dry cutting means a HEPA vacuum shroud plus a P100 respirator.

Handheld angle grinders on concrete or masonry. Attach a HEPA vacuum shroud sized for that grinder model. Fit is everything. A loose shroud leaks dust. Bosch, Metabo, and Hilti all sell shroud kits for their grinders. Wet methods are an alternative.

Jackhammering and chipping. Water misting systems or HEPA vacuum shrouds on the chisel. Wet methods usually win on practicality in the field.

Rotary hammer drilling. A vacuum attachment with HEPA filtration on the drill. These are everywhere and run roughly $30 to $80 for a compatible attachment ^[5].

Hand mixing mortar or other dry ingredients. Mixing indoors calls for local exhaust ventilation. A shop fan pushing air around isn't enough; you need capture velocity that pulls dust away from the worker. Outdoors, wet methods and less agitation help.

The controls that don't work: standard shop vacuums (not HEPA-rated), blowing dust off with compressed air, and dry sweeping. OSHA prohibits compressed air for cleaning surfaces where silica dust is present unless no other method is feasible ^[2].

The hierarchy of controls sits behind all of this and connects to your broader OSHA training program: elimination and substitution come first, then engineering controls, then administrative controls, then PPE.

When does respiratory protection become required?

Two situations trigger respirators under the silica rule. One: Table 1 calls for a respirator on top of engineering controls for a given task. Two: engineering controls don't hold exposure below the PEL and you're still doing the task.

Table 1 sets the minimum respirator APF (assigned protection factor) per task. For most construction tasks with partial controls, a half-mask APF-10 respirator (an N95 or P100 filtering facepiece) is the floor. Higher-exposure tasks, or tasks where controls work less well, may need a full-face respirator with a higher APF.

If you require respirators, you need a written respirator program under 29 CFR 1910.134, which is a separate document from the ECP. That program requires medical clearance before use, annual fit testing, and training ^[10]. Plenty of small contractors miss this piece. The ECP points to the respirator program; the respirator program stands on its own.

For voluntary respirator use (exposure is below the action level but a worker wants a mask anyway), you still have to hand the worker OSHA's Appendix D information. Appendix D is a one-page notice on voluntary respirator use, available on OSHA.gov ^[4].

NIOSH approves respirators. Look for the TC (Testing and Certification) number on the packaging. A P100 filtering facepiece runs roughly $25 to $60 a unit. A half-mask elastomeric respirator with P100 cartridges runs $30 to $80 for the mask plus $10 to $20 per set of cartridges ^[5].

What does OSHA actually cite small contractors for under the silica rule?

OSHA's enforcement data shows exactly where small contractors get caught, and it's the same short list every time.

Since the construction standard took full effect in 2017, OSHA has issued thousands of citations under 29 CFR 1926.1153. The most frequent categories: no written Exposure Control Plan, failure to run the Table 1 controls (missing vacuum shrouds on grinders and drills lead the pack), no competent person named, and missing training ^[6].

The money is real. Under OSHA's 2024 penalty adjustments, a serious violation carries a maximum penalty of $16,131 per violation, and willful or repeated violations can reach $161,323 per violation ^[7]. For a small contractor, a single multi-item silica citation can run $15,000 to $40,000 total when several items get cited together.

Here's the relief valve. OSHA's penalty reduction structure gives employers with 25 or fewer employees a 60% cut on the initial penalty calculation, and employers with 26 to 100 employees a 40% cut. Good faith (a written plan that's only partly deficient, for example) can drop the number further.

Construction inspections often start with a complaint or a fatality, but silica shows up more and more in programmed inspections (planned sweeps of high-risk industries). Masonry and concrete contractors sit near the top of OSHA's National Emphasis Program targets.

If an inspector shows up, knowing your rights and what they'll ask for on day one beats learning it in the moment. The OSHA basics article walks through that process.

Do small construction employers need air monitoring for silica?

Usually no, and OSHA meant it that way. The Table 1 compliance option exists to let small construction employers skip air sampling. Fully implement the Table 1 controls for every covered task and you have no sampling obligation ^[1]. That was a deliberate policy call to take the weight off small contractors who can't keep an industrial hygienist on retainer.

You do need air monitoring when you perform tasks that aren't on Table 1, when you can't fully run the Table 1 controls for a listed task, or when you have reason to think exposure could top the PEL even with controls running.

When monitoring is required, it follows the methods in the silica standard: samples analyzed by NIOSH method 7500 or 7602 or the MSHA P-7 method, collected with a personal sampling pump and respirable dust cyclone worn by the worker ^[8]. A single personal air sample from an industrial hygiene firm typically costs $150 to $400 including lab analysis ^[5]. For one crew doing one task type, one or two samples establish a baseline.

Objective data is the alternative. That's published data from OSHA, NIOSH, or industry groups for similar tasks and controls. OSHA's silica exposure database and NIOSH publications hold exposure data for dozens of construction tasks. If published data shows a task under full Table 1 controls sits well below the action level, that data is usable in place of your own sampling.

How do training requirements fit into the exposure control plan?

Training happens before employees start covered tasks, then at least once a year ^[2]. It doesn't have to be a classroom. A toolbox talk written down satisfies the rule as long as it covers the right topics.

The required topics under 29 CFR 1926.1153(i): the health hazards of silica (silicosis, lung cancer, COPD, kidney disease), the specific tasks on your site that create silica dust, the engineering controls and work practices your crew uses, what respiratory protection is available and when to wear it, and the contents of the Exposure Control Plan itself.

In the written plan, add a short training section that lists these topics and states how you'll document training. A sign-in sheet with the date, trainer name, and topics covered does the job. Keep those records.

OSHA's site has free silica training materials, including a full PowerPoint and talking points ^[4]. CPWR (the Center for Construction Research and Training) has a silica e-learning course that runs about an hour. Neither costs a dime.

If your crew includes workers who speak languages other than English, OSHA offers silica materials in Spanish and CPWR has multilingual resources. The training has to be in a language the employee understands ^[2]. English-only won't cut it if the worker can't follow it.

For the wider picture, the OSHA training requirements article covers how construction training fits into 1926 Subpart C. If your supervisors are working toward an OSHA 30 credential, silica shows up in the construction track.

What does a complete silica ECP look like for a small masonry contractor?

Here's a real example. A five-person masonry crew does tuckpointing, block laying, and concrete cutting. Its silica profile is simple.

The task inventory: tuckpointing with an angle grinder, cutting CMU block with a masonry saw, mixing mortar, and cleanup. All four sit on Table 1.

The controls section reads roughly like this:

• Angle grinder tuckpointing: HEPA vacuum shroud (Hilti VC 20 connected to a Bosch GWS grinder), confirmed sealed before each shift. If the shroud is missing or damaged, work stops until it's repaired. Respirator: half-mask elastomeric with P100 cartridges.
• Masonry saw cutting: integrated water delivery, water flow confirmed before cutting starts. Operator wears a minimum N95 respirator while cutting.
• Mortar mixing: pre-blended wet mortar where feasible. If dry mix is used, mix outdoors, add water first, keep agitation low. N95 respirator during mixing.
• Cleanup: HEPA vacuum or wet wipe only. No dry sweeping. No compressed air.

Competent person: [Name], site foreman, cell [number]. Authority to halt any task where controls aren't in place.

Training: at project start and annually, documented on a sign-in sheet filed with project records.

Medical surveillance: tracked by the owner. Any worker at or above the action level for 30-plus days in a calendar year gets a medical exam offer within 30 days of reaching that threshold.

That's the entire plan for this crew. Two pages. Compliant. About 45 minutes to write the first time, 10 minutes to update for the next project.

If you want a template that fills in the Table 1 control language from your task selections, SafetyFolio's program generator does that and hands you a print-ready document for the truck.

What are the medical surveillance requirements for silica?

Medical surveillance under 29 CFR 1926.1153(h) starts when a worker is exposed at or above the action level for 30 or more days per year. The employer pays for every exam. The worker can't be charged a cent.

The first exam has to happen within 30 days of the worker crossing that 30-day threshold. After that, exams repeat every three years as long as exposure stays at or above the action level.

The exam is performed by or under the supervision of a physician or licensed health care professional (PLHCP). It covers a medical and work history questionnaire, a physical exam focused on the respiratory system, and a chest X-ray if the PLHCP recommends one. Pulmonary function testing is common too, though not required in every case.

The PLHCP gives the employee a written opinion with findings and recommendations. The employer gets a copy of that opinion but not the full medical records (those belong to the employee). The employer's copy confirms whether the worker has any condition that silica exposure might aggravate or that affects respirator use.

For a truly small crew (fewer than 10 workers) doing intermittent concrete work, no individual worker may ever hit the 30-day threshold. Track days of exposure per worker per year. If nobody reaches 30 days, you owe no medical surveillance for that year, though you still need the written ECP and the training.

Frequently asked questions

Does every construction company need a written silica exposure control plan?

Any contractor whose workers may be exposed to respirable crystalline silica at or above the action level (25 µg/m³) needs a written plan under 29 CFR 1926.1153(g). If your crew never cuts, grinds, drills, or otherwise disturbs concrete, masonry, stone, or sand-containing materials, you may not need one. In practice, almost all concrete and masonry contractors do.

How long does it take to write a silica exposure control plan?

For a small contractor with a defined scope of work, the first draft takes one to three hours. Use OSHA's Table 1 as your framework and a template to fill in, and it's closer to 45 minutes. The plan doesn't need to be long. Two pages covering tasks, controls, the competent person, training, and housekeeping is fully compliant.

What is respirable crystalline silica and why is it different from regular sand?

Respirable crystalline silica is the fine fraction of silica dust (particles 10 microns or smaller) that reaches deep into the lungs. Sand contains crystalline silica (usually quartz), but the hazard comes from cutting, grinding, or crushing it, which creates the fine respirable particles. Undisturbed sand on a beach isn't the hazard. Dry-cutting a concrete block is.

Can I use OSHA's Table 1 instead of doing air monitoring?

Yes. OSHA built Table 1 so construction employers can skip air sampling entirely when they fully implement the listed controls for covered tasks. Fully means the specific equipment (water delivery, HEPA vacuum shroud, and so on) is in place and working before the task begins. Partial implementation doesn't qualify, and for tasks not on Table 1, monitoring or objective data is still required.

What respirator is required for silica work?

Table 1 sets the minimum respirator APF for each task. For most common construction tasks with engineering controls in place, a half-mask APF-10 respirator (N95 or P100 filtering facepiece) is the floor. Higher-exposure tasks or incomplete controls may require a full-face respirator with APF-50. All respirators must be NIOSH-approved and used within a written respirator program under 29 CFR 1910.134.

How often does the silica exposure control plan need to be updated?

The plan must be updated whenever tasks, equipment, or controls change. The rule sets no fixed annual update, but reviewing it at the start of each project and at least once a year is good practice. If you add a new silica-generating task (say your crew starts doing demolition on top of new construction), update the plan before that work begins.

What are the OSHA penalties for not having a silica exposure control plan?

A missing or deficient written ECP is typically cited as a serious violation. Under 2024 rates, a serious violation carries up to $16,131 per item. Employers with 25 or fewer workers get a 60% penalty reduction. A single inspection with multiple silica violations (no plan, no training, missing controls) can still total $10,000 or more after reductions.

Does the silica rule apply to general industry and maritime as well as construction?

Yes. OSHA has a separate silica standard for general industry and maritime (29 CFR 1910.1053) and one for construction (29 CFR 1926.1153). The PEL is 50 µg/m³ and the action level is 25 µg/m³ across all of them. The main difference: Table 1 exists only for the construction standard. General industry employers must use air monitoring or objective data.

What counts as a silica-generating task on a construction site?

Any activity that cuts, grinds, drills, crushes, or otherwise disturbs materials containing crystalline silica. Common examples: saw-cutting concrete or asphalt, angle grinding masonry, jackhammering, rotary hammer drilling into concrete, hand-mixing mortar, tuckpointing, abrasive blasting with silica-containing media, and sweeping or blowing silica-containing debris. Drywall finishing with gypsum (not silica) generally does not qualify.

Who qualifies as a competent person for silica under OSHA's construction standard?

OSHA defines a competent person as someone capable of identifying silica hazards and with authority to take corrective action. The silica rule requires no specific certification. A trained foreman or owner who understands the Table 1 controls, can confirm equipment is working, and has authority to stop work qualifies. Name the person in the written plan.

Is dry sweeping always prohibited under the silica rule?

Dry sweeping of silica-containing debris is prohibited unless no alternative is feasible. The rule requires wet methods or a HEPA vacuum for cleanup. The same goes for using compressed air to blow dust off surfaces. This covers cleanup of concrete cutting residue, mortar dust, and similar materials. A push broom in a silica work area is a violation OSHA cites often.

How do I document silica training for my crew?

A sign-in sheet with the date, the trainer's name, the topics covered, and each employee's signature is enough. Keep these with your project files. There's no required form. Documenting toolbox talks on silica (date, attendees, topic) satisfies the annual refresher. The records don't go to OSHA, but they must be available for inspection.

Does a small contractor need medical surveillance if workers are only occasionally exposed?

Medical surveillance is triggered by 30 or more days of exposure at or above the action level (25 µg/m³) in a calendar year, per individual worker. If no single worker reaches that threshold, you owe no medical surveillance for that year. Track days of exposure per worker. For crews doing intermittent concrete work, many workers never hit 30 days annually.

Where can I find OSHA's official Table 1 for silica?

Table 1 is published directly in 29 CFR 1926.1153 and is available on OSHA.gov. Search 'OSHA silica Table 1' and you'll find both the full standard and a standalone Table 1 reference. OSHA also has a silica eTool that presents Table 1 in a task-by-task interactive format. Both are free.

Sources

1. OSHA, 29 CFR 1926.1153 Respirable Crystalline Silica (Construction Standard): Action level is 25 µg/m³, PEL is 50 µg/m³ as 8-hour TWA; Table 1 compliance option allows employers to skip air monitoring for listed tasks.
2. OSHA, 29 CFR 1926.1153 Full Text via eCFR: Written ECP requirements (1926.1153(g)), training requirements (1926.1153(i)), housekeeping requirements (1926.1153(f)), and medical surveillance (1926.1153(h)) are all specified in the standard.
3. NIOSH, Hazard Review: Health Effects of Occupational Exposure to Respirable Crystalline Silica: Uncontrolled concrete grinding and cutting can produce silica exposures of 300 to 3,000 µg/m³ or more.
4. OSHA, Silica Resources and Training Materials: OSHA provides free silica training materials, respirator training, and the Appendix D voluntary respirator use information at no cost.
5. SafetyFolio equipment cost estimates compiled from major tool and safety supply retailers: HEPA vacuum drill attachments run roughly $30 to $80; P100 filtering facepiece respirators $25 to $60; personal air samples $150 to $400 with lab analysis.
6. OSHA, Enforcement and Inspection Data: Most frequent silica violation categories since 2017 include no written ECP, failure to implement Table 1 controls, no competent person, and lack of training.
7. OSHA, Penalties: As of 2024, the maximum penalty for a serious OSHA violation is $16,131 per violation; willful or repeated violations can reach $161,323.
8. NIOSH, Manual of Analytical Methods (Method 7500, Silica, Crystalline): OSHA requires air monitoring samples to be analyzed by NIOSH method 7500, 7602, or MSHA P-7 method.
9. OSHA, Small Entity Compliance Guide for the Respirable Crystalline Silica Standard for Construction (OSHA 3902): OSHA published a dedicated compliance guide for small contractors explaining Table 1 usage, competent person requirements, and written plan contents.
10. OSHA, 29 CFR 1910.134 Respiratory Protection: Employers requiring respirator use must maintain a written respirator program including medical clearance, fit testing, and training under 1910.134.
11. CPWR, The Center for Construction Research and Training, Silica Training Resources: CPWR offers a free silica e-learning course of about one hour and multilingual training resources for construction workers.
12. BLS, Injuries, Illnesses, and Fatalities, Construction Industry Data: Construction is among the highest-risk industries for occupational lung disease; masonry and concrete work are primary silica exposure sectors.