# WAC 296-840-115: WAC 296-840-115. Regulated areas

> Washington · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_115

## Section

- **Citation:** WAC 296-840-115
- **Heading:** WAC 296-840-115. Regulated areas
- **Jurisdiction:** Washington
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Washington Administrative Code / Title 296 / Chapter 296-840 / Section 296-840-115

## Text

This section does not apply to occupational respirable crystalline silica exposures in construction work.
(1) Establishment. You must establish a regulated area wherever an employee's exposure to airborne concentrations of respirable crystalline silica is, or can reasonably be expected to be, in excess of the PEL.
(2) Demarcation. You must demarcate the regulated areas from the rest of the workplace in a manner that minimizes the number of employees exposed to respirable crystalline silica within the regulated area.
(3) You must post signs at all entrances to regulated areas that bear the legend specified in WAC 296-840-150 (2).
(4) Access. You must limit access to regulated areas to:
(a) Persons authorized by the employer and required by work duties to be present in the regulated area;
(b) Any person entering such an area as a designated representative of employees for the purpose of exercising the right to observe monitoring procedures under WAC 296-840-105 ; and
(c) Any person authorized by the department or regulations issued under it to be in a regulated area.
(5) Provision of respirators. You must provide each employee and the employee's designated representative entering a regulated area with an appropriate respirator in accordance with WAC 296-840-125 and must require each employee and the employee's designated representative to use the respirator while in a regulated area.

## Nearby sections

- [WAC 296-840-095 WAC 296-840-095. Definitions](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_095.md)
- [WAC 296-840-100 WAC 296-840-100. Scope and application](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_100.md)
- [WAC 296-840-105 WAC 296-840-105. Exposure assessment](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_105.md)
- [WAC 296-840-110 WAC 296-840-110. Specified exposure control methods](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_110.md)
- [WAC 296-840-115 WAC 296-840-115. Regulated areas](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_115.md)
- [WAC 296-840-120 WAC 296-840-120. Methods of compliance](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_120.md)
- [WAC 296-840-125 WAC 296-840-125. Respiratory protection](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_125.md)
- [WAC 296-840-130 WAC 296-840-130. Respiratory protection program](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_130.md)
- [WAC 296-840-135 WAC 296-840-135. Housekeeping](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_135.md)
- [WAC 296-840-140 WAC 296-840-140. Written exposure control plan](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_140.md)
- [WAC 296-840-145 WAC 296-840-145. Medical surveillance](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_145.md)
- [WAC 296-840-150 WAC 296-840-150. Communication of respirable crystalline silica hazards to employees](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_150.md)
- [WAC 296-840-155 WAC 296-840-155. Recordkeeping](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_155.md)
- [WAC 296-840-160 WAC 296-840-160. Effective dates](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_160.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_296_840_115. Check the current official text before relying on it. Not legal advice.