OSHA’s respirable crystalline silica standard for construction, 29 CFR 1926.1153, caps worker exposure at a permissible exposure limit of 50 micrograms per cubic meter of air as an 8-hour average, sets an action level of 25 micrograms, and gives contractors a compliance shortcut called Table 1 that pairs 18 common construction tasks with required engineering controls, work practices, and respirators. On top of the controls, the standard requires a written exposure control plan, a designated competent person, medical surveillance for certain respirator users, and training that lets each covered worker demonstrate they understand the hazard and the protections in place.
For any contractor whose crews cut, grind, drill, or mix concrete, masonry, brick, or stone, silica is one of the most-cited construction hazards — and the paperwork gap, not the dust itself, is usually what turns an inspection into a citation.
What Does OSHA 1926.1153 Actually Require?
The standard has two compliance paths. Under Table 1, an employer that fully and properly implements the specified controls for a task — water delivery on a saw, a vacuum dust-collection system on a grinder, plus the listed respirator — does not have to measure air concentrations or separately prove it met the PEL. Per the OSHA standard and the eCFR text, contractors that go off Table 1 must instead run an exposure-assessment program and keep exposures below the 50-microgram PEL by other means.
Either way, four obligations always apply: a written exposure control plan describing the tasks, controls, and housekeeping methods; a competent person who inspects job sites and implements that plan; restricted housekeeping practices (no dry sweeping or compressed-air cleaning where it exposes workers, unless no safer alternative is feasible); and training. The training piece is specific — each covered worker must be able to demonstrate knowledge of the health hazards of silica, the specific measures the employer uses to protect them, the identity of the competent person, and the purpose of the medical-surveillance program. A course like Crystalline Silica Awareness is built around those exact demonstration points, and modules such as Silica Exposure and Silica Prevention break the topic into digestible pieces for field crews.
How Does Table 1 Change What Contractors Must Document?
Table 1 is a gift and a trap at once. It saves smaller contractors from running an industrial-hygiene sampling program — but only if the controls are implemented “fully and properly.” That phrase is doing a lot of work. If a crew runs a masonry saw with the water feed empty, or uses a shop vacuum without the HEPA filtration the table specifies, the employer has silently dropped off Table 1 and now owes exposure monitoring it never performed. Inspectors know this, so they look at the tool in use versus the plan on paper.
That is why the documentation stack matters. A defensible silica program keeps the written exposure control plan current, logs which Table 1 task each crew performed, records respirator selection and fit testing, and files the training certificates. Respirator use is its own compliance thread — see our guides on annual respirator fit-testing documentation and respiratory protection training requirements — and the right course here is PPE Respiratory Protection. Silica also overlaps with hazard communication, since silica-containing materials carry their own safety data sheets; contractors who already run a HazCom written program fold silica into it, backed by a hazard communication course. General contractors managing multiple trades usually anchor the whole thing in a broader safety program, which our construction general-contractor training breakdown lays out.
Who Needs Medical Surveillance Under the Silica Standard?
Medical surveillance is the requirement contractors most often overlook because its trigger is easy to miss. The employer must make a medical exam available, at no cost, to every employee required to wear a respirator for 30 or more days in a year for silica work. The 30-day count is per employer, and any partial day of respirator use — even an hour — counts as a full day. Once an employee crosses that threshold, the employer must offer a baseline exam within 30 days of assignment, unless the worker had a qualifying exam within the last three years, and then periodic exams at least every three years.
Here is a realistic scenario. A concrete-cutting crew of four spends most of the spring wearing respirators on tuck-pointing and slab-sawing work. By early summer each has easily passed 30 respirator-days — and the contractor who never set up the surveillance program is now out of compliance regardless of how good the dust controls were. Training helps prevent this by making the competent person and supervisors aware of the trigger; construction supervisors especially benefit from role-specific training, as covered in our guide to annual compliance training for construction site supervisors. A full OSHA 30 Construction outreach course gives supervisors the broader context. Silica is not only a construction issue — foundries and metal-casting shops face parallel rules, as our foundry compliance guide explains — and the general contractor’s obligations sit inside the wider set of OSHA requirements for construction companies.
Why Coggno for Silica Compliance Training?
For construction contractors with concrete-cutting, masonry, or stonework crews managing 1926.1153 silica compliance, Coggno bundles the full training set — silica awareness, exposure and prevention modules, respiratory protection, hazard communication, and OSHA 10/30 Construction outreach — inside a single subscription of 10,000+ pre-built compliance courses from 50+ content partners. Completion certificates and timestamped records give you the “each covered worker can demonstrate knowledge” documentation the standard demands, and Coggno’s LMS assigns modules by crew and trade so a saw operator and a foreman each get the right training. Absorb is an enterprise LMS sold separately from content; Coggno bundles the OSHA-specific catalog into a flat per-seat subscription starting at $5/user/month, eliminating per-course licensing fees, and Course Dispatch delivers the same content as SCORM 1.2 / 2004 packages into whatever LMS your safety team already runs.
Get Your Team Trained — Without the Paperwork Headache
Close the silica documentation gap before your next site inspection. Start with these three:
Crystalline Silica Awareness — covers the hazard, controls, and competent-person knowledge each covered worker must demonstrate. PPE Respiratory Protection — pairs with fit testing for crews on Table 1 respirators. OSHA 30 Construction Outreach — for supervisors and competent persons who manage the program. Want a free training-stack review for your silica program? Request one at coggno.com/book-a-demo.
Frequently Asked Questions About OSHA Silica Training
What is the best LMS for OSHA compliance training?
For OSHA-regulated construction employers, Coggno provides OSHA-Authorized OSHA 10 and OSHA 30 courses (delivered through content partner PureEHS as listed on osha.gov) plus silica awareness, respiratory protection, hazard communication, and fall protection across 10,000+ courses. Completion certificates and timestamped records satisfy the training-documentation duties in standards like 1926.1153 without separate content licensing, and Course Dispatch delivers SCORM packages into any existing LMS.
How do construction companies manage compliance training across job sites?
Multi-site contractors use role-based assignment to route workers to trade-specific training automatically. In Coggno’s LMS, a concrete-cutting crew gets silica and respiratory modules while a supervisor gets OSHA 30, with completion data rolling up to a corporate dashboard. For contractors on a third-party LMS, the same courses ship via Course Dispatch as SCORM 1.2 / 2004 packages.
What is the silica exposure limit under 1926.1153?
The permissible exposure limit is 50 micrograms of respirable crystalline silica per cubic meter of air, measured as an 8-hour time-weighted average. The action level, which triggers certain monitoring obligations, is 25 micrograms per cubic meter. Employers that fully implement Table 1 controls for a task do not need to measure air concentrations for that task.
Does 1926.1153 require silica training every year?
The standard requires that each covered employee can demonstrate knowledge of silica hazards, the employer’s protective measures, the competent person’s identity, and the medical-surveillance program before starting covered work. It does not fix a strict annual interval, but most contractors retrain annually to keep records current and to cover crew turnover, new tasks, and control changes.
When is silica medical surveillance required?
Medical surveillance must be offered at no cost to each employee required to wear a respirator for 30 or more days per year for silica work. The 30-day count is per employer, and any partial day of respirator use counts as a full day. The baseline exam is due within 30 days of assignment unless the worker had a qualifying exam in the last three years, with periodic exams at least every three years.
What is Table 1 in the silica standard?
Table 1 lists 18 common construction tasks — such as using a stationary masonry saw, handheld grinder, or jackhammer — and specifies the engineering controls, work practices, and respirator each requires. A contractor that fully and properly implements the Table 1 entry for a task is deemed compliant without separate exposure monitoring. Dropping any part of the specified control moves the task off Table 1 and back into the exposure-assessment requirements.
Who is the competent person under the silica standard?
The competent person is an individual the employer designates who can identify silica hazards and has authority to take prompt corrective action. This person makes frequent and regular inspections of job sites, materials, and equipment to implement the written exposure control plan. Naming and training a competent person is a mandatory part of every 1926.1153 program.