General Industry (29 CFR 1910)

Respirable Crystalline Silica (General Industry)

Verified vs OSHA sources · 2026-10-05

29 CFR 1910.1053

29 CFR 1910.1053 protects general-industry and maritime workers from respirable crystalline silica, capping exposure at 50 µg/m³ as an 8-hour TWA with a 25 µg/m³ action level. Unlike construction, it has no Table 1: employers must assess each worker's exposure and control it to the PEL, with medical surveillance above the action level.

29 CFR 1910.1053 at a glance

PEL: 50 µg/m³ as an 8-hour TWA (29 CFR 1910.1053(c))
Action level: 25 µg/m³ (8-hr TWA): triggers monitoring and medical surveillance
Who it covers: General-industry and maritime employers (foundries, brick/glass/pottery, stone, hydraulic fracturing)
Key difference: General industry has NO Table 1: that deemed-compliant task table exists only in construction (1926.1153)
Max penalty (2026): $16,550 per serious violation; $165,514 per willful
The #1 confusion: GI silica relies on an exposure assessment, not the construction Table 1 of specified controls

What 29 CFR 1910.1053 requires (plain English)

29 CFR 1910.1053 protects general-industry and maritime workers from respirable crystalline silica: the fine dust generated by cutting, grinding, or handling quartz-containing materials in foundries, brick and glass and pottery manufacturing, stone fabrication, and sand operations including hydraulic fracturing. Inhaled silica causes silicosis (an incurable lung disease), lung cancer, COPD, and kidney disease. The standard sets a permissible exposure limit of 50 µg/m³ as an 8-hour time-weighted average and an action level of 25 µg/m³.

Unlike the construction silica standard, general industry has a single compliance path built on assessing exposure. Employers must determine each worker's exposure using either a performance option or a scheduled-monitoring option, then reduce exposure to the PEL primarily through engineering and work-practice controls (ventilation, wet methods, enclosure), with respirators where controls cannot achieve the PEL. Where exposures exceed the PEL, a written exposure control plan and regulated-area-style protections apply.

Above the action level for 30 or more days a year, workers must be offered medical surveillance, including a chest X-ray and spirometry, at no cost. Housekeeping methods that raise dust (dry sweeping, compressed air) are restricted, and records are kept under 1910.1020. The general-industry silica standard (1910.1053) shares the same 50 µg/m³ PEL as construction (1926.1153) but omits construction's Table 1 of specified exposure-control methods.

The regulatory text

“The employer shall ensure that no employee is exposed to an airborne concentration of respirable crystalline silica in excess of 50 µg/m3, calculated as an 8-hour TWA.”

29 CFR 1910.1053(c)

Key facts about 29 CFR 1910.1053

The general-industry silica PEL is 50 µg/m³ as an 8-hour TWA (1910.1053(c)).
The action level is 25 µg/m³ (8-hr TWA) and triggers monitoring and medical surveillance.
General industry has NO Table 1: the specified-control task table exists only in construction (1926.1153).
Exposure is assessed by a performance option or a scheduled-monitoring option (1910.1053(d)).
Engineering and work-practice controls are the primary means of meeting the PEL; respirators supplement them.
Medical surveillance (chest X-ray and spirometry) is offered to workers at or above the action level 30+ days a year (1910.1053(i)).
Silica causes silicosis, lung cancer, COPD, and kidney disease, and the damage is irreversible.

Scope: who 29 CFR 1910.1053 applies to

Regulatory framework: General Industry (29 CFR 1910)
Citation reference: 29 CFR 1910.1053
Enforcement status: In force and enforced
Jurisdiction: Federal OSHA (29 State-Plan jurisdictions may be stricter)

State-Plan states (e.g. California, Washington, Michigan) operate OSHA-approved programs that must be at least as effective as federal OSHA and frequently impose higher penalties or additional requirements. Confirm the rule as adopted in your state.

Key requirements of 29 CFR 1910.1053

#	Employer obligation
1	Limit exposure to 50 µg/m³ PEL
2	Conduct exposure assessments
3	Use engineering and work practice controls
4	Provide respiratory protection when above PEL
5	Offer medical surveillance for workers above action level for 30+ days/year
6	Maintain exposure records

Summarized from the text of 29 CFR 1910.1053. Always read the full regulation for the binding language.

Common Silica (General Industry) violations

Deficiencies OSHA cites under 29 CFR 1910.1053 include the ones below, in no particular order. Distinct deficiencies can be cited as separate items, and each serious item carries up to $16,550 (2026). Broader per-instance stacking exists but is a discretionary, case-by-case OSHA enforcement policy, not an automatic multiplier.

No exposure assessment for operations that generate respirable silica (1910.1053(d)).
Exposures above the PEL without adequate engineering controls (1910.1053(f)).
No written exposure control plan where required (1910.1053(f)).
No medical surveillance for workers at or above the action level 30+ days a year (1910.1053(i)).
Prohibited housekeeping (dry sweeping, compressed air) that re-suspends silica dust (1910.1053(h)).

General-industry silica has no Table 1: that is a construction-only shortcut

The most frequent mix-up is expecting the construction silica Table 1 to apply in general industry. It does not. Construction's 1926.1153 lets an employer follow Table 1, specified controls for named tasks, and skip air monitoring. General industry's 1910.1053 has no such table: employers must assess each worker's exposure (via the performance or scheduled-monitoring option) and control it to the 50 µg/m³ PEL, with monitoring to prove it. The PEL and the 25 µg/m³ action level are identical between the two standards, but the compliance mechanism differs, so a foundry cannot 'use Table 1' the way a construction contractor can.

What OSHA inspectors look for

A compliance officer checks the exposure assessment (performance or scheduled-monitoring option), whether engineering controls achieve the 50 µg/m³ PEL before respirators, the written exposure control plan, and medical surveillance for workers above the action level 30 or more days a year. Expecting the construction Table 1 to apply is a frequent misunderstanding.

Example: how a violation is cited

A foundry generates silica dust from sand handling with no exposure assessment, assuming it can 'use Table 1' as construction does. OSHA cites 1910.1053(d) because general industry must assess exposure and control to the PEL, there is no Table 1 shortcut, with penalties from $16,550.

Illustrative example, not a specific OSHA case.

Silica (General Industry) compliance checklist

Use this to evaluate your compliance with 29 CFR 1910.1053. Each item is a key requirement OSHA may verify during an inspection.

Assess each worker's respirable-silica exposure using the performance or scheduled-monitoring option.
Reduce exposure to the 50 µg/m³ PEL primarily with ventilation, wet methods, and enclosure.
Provide respirators under a 1910.134 program where engineering controls cannot achieve the PEL.
Offer medical surveillance (chest X-ray, spirometry) to workers at or above the 25 µg/m³ action level for 30+ days a year.
Restrict dry sweeping and compressed-air cleanup; use wet methods or HEPA vacuuming instead.
Train workers on silica hazards and keep exposure and medical records for employment plus 30 years.

2026 penalties for 29 CFR 1910.1053

Maximums set by 29 CFR 1903.15(d). 2026 amounts unchanged from 2025 (no CPI adjustment; OMB M-26-11). Not an increase. The 2025 OSHA penalty levels remain in effect for 2026; OSHA made no inflation adjustment for 2026. 29 CFR 1903.15 identifies January 15, 2025 as the effective reference for these amounts, while OSHA's public penalties page currently references penalties assessed after Jan. 15, 2026.

Violation type	Minimum	Maximum	When it applies
Serious	$1,085	$16,550	Substantial probability of death or serious physical harm.
Other-Than-Serious	$0	$16,550	Relates to safety/health but unlikely to cause death or serious harm.
Willful	$11,823	$165,514	Intentional, knowing, or voluntary disregard of the requirement.
Repeated	$4,256	$165,514	A substantially similar violation cited within the last 5 years.
Failure to Abate	None	$16,550/day	up to $16,550 per day; total capped at 30x the daily amount (FOM Ch.6)

General-industry silica citations follow health inspections of foundries and mineral processing. Serious violations reach $16,550 and willful or repeat violations $165,514; no exposure assessment and no written control plan are common findings.

Maximums and the willful minimum are set by 29 CFR 1903.15(d); the serious and repeated minimums are OSHA policy floors from its annual penalty adjustment memo. OSHA applies gravity-based and size, good-faith and history reductions (FOM CPL 02-00-164 Ch.6). Estimates only, not legal advice.

The business case for Silica (General Industry) compliance

Respirable silica causes silicosis, lung cancer, COPD, and kidney disease, and the lung damage is incurable. General-industry operations (foundries, brick, glass, stone, hydraulic fracturing) generate it constantly, and because there is no Table 1, controlling to the 50 µg/m³ PEL depends on real exposure assessment.

Free compliance tools for 29 CFR 1910.1053

Silica Exposure Calculator Respiratory Protection Program Builder PPE Selector

Silica (General Industry) penalties by state

Penalties and enforcement vary by state. State-Plan states may impose higher penalties and additional requirements beyond federal 29 CFR 1910.1053.

Alabama Arkansas Colorado Connecticut Delaware District of Columbia

View all 50 states + DC →

Frequently asked questions about 29 CFR 1910.1053

What is the general-industry silica PEL?

Under 1910.1053(c), no employee may be exposed to respirable crystalline silica above 50 µg/m³ as an 8-hour time-weighted average. The action level, which triggers exposure monitoring and medical-surveillance duties, is 25 µg/m³ as an 8-hour TWA: the same limits that apply to construction under 1926.1153.

Does the silica Table 1 apply to general industry?

No. Table 1 (the list of specified engineering controls, work practices, and respiratory protection for named tasks that lets an employer skip air monitoring) exists only in the construction silica standard, 1926.1153. General industry follows 1910.1053, which requires assessing each worker's exposure through a performance option or a scheduled-monitoring option and controlling it to the PEL, with monitoring to demonstrate compliance.

How does an employer assess silica exposure in general industry?

Under 1910.1053(d), the employer chooses between two options: the performance option, using any combination of air monitoring data or objective data sufficient to accurately characterize exposures, or the scheduled-monitoring option, which prescribes initial monitoring and then periodic monitoring on a schedule keyed to the results. Either way, the goal is to characterize each worker's exposure to respirable crystalline silica reliably.

When is silica medical surveillance required in general industry?

Under 1910.1053(i), the employer must make medical surveillance available at no cost to each employee exposed at or above the 25 µg/m³ action level for 30 or more days a year. It includes a medical and work history, a physical examination focused on the respiratory system, a chest X-ray, and spirometry, repeated at least every three years.

Regulatory history of 29 CFR 1910.1053

OSHA issued the current respirable crystalline silica standards in 2016 (81 FR 16286), replacing decades-old limits with a 50 µg/m³ PEL and a 25 µg/m³ action level. The rule created two standards: general industry and maritime (1910.1053), with an exposure-assessment framework, and construction (1926.1153), with the alternative Table 1 of specified controls. General-industry enforcement began phasing in from 2018.

Related glossary terms

Key terms that appear in 29 CFR 1910.1053, each with a full plain-English explainer.

Silicosis Permissible Exposure Limit (PEL)Action Level Medical Surveillance Engineering Controls Respiratory Protection Program

Related guides & articles

OSHA Silica Medical Surveillance & the 30-Day Respirator Rule OSHA Silica Compliance Construction 2026

Related OSHA standards

29 CFR 1926.1153

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29 CFR 1926.501

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29 CFR 1910.1200

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Primary sources

OSHA figures on this page are imported from HazComFast's verified regulatory module (verified 2026-10-05 against eCFR, OSHA.gov, and the Federal Register).

This page is an educational summary, not legal advice. OSHA standards and penalty amounts change; confirm requirements against the current regulation and your applicable State-Plan before acting.

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