Action level means a concentration of airborne BD of 0.5 ppm calculated as an eight (8)-hour time-weighted average.
Authorized person means any person specifically designated by the employer, whose duties require entrance into a regulated area, or a person entering such an area as a designated representative of employees to exercise the right to observe monitoring and measuring procedures under subsection (d)(8), or a person designated by the Chief or NIOSH to enter a regulated area.
1,3-Butadiene means an organic compound with chemical formula CH(2)=CH-CH=CH(2) that has a molecular weight of approximately 54.15 gm/mole.
Business day means any Monday through Friday, except those days designated as federal, state, local or company specific holidays.
Chief means the Chief of the Division of Occupational Safety and Health, or designee.
Complete Blood Count (CBC) means laboratory tests performed on whole blood specimens and includes the following: White blood cell count (WBC), hematocrit (Hct), red blood cell count (RBC), hemoglobin (Hgb), differential count of white blood cells, red blood cell morphology, red blood cell indices, and platelet count.
Day means any part of a calendar day.
Emergency situation means any occurrence such as, but not limited to, equipment failure, rupture of containers, or failure of control equipment that may or does result in an uncontrolled significant release of BD.
Employee exposure means exposure of a worker to airborne concentrations of BD which would occur if the employee were not using respiratory protective equipment.
NIOSH means the Director of the National Institute for Occupational Safety and Health (NIOSH), U.S. Department of Health and Human Services, or designee.
Objective data means monitoring data, or mathematical modeling or calculations based on composition, chemical and physical properties of a material, stream or product.
Permissible Exposure Limits, PELs means either the 8 hour Time Weighted Average (8-hr TWA) exposure or the Short-Term Exposure Limit (STEL).
Physician or other licensed health care professional is an individual whose legally permitted scope of practice (i.e., license, registration, or certification) allows him or her to independently provide or be delegated the responsibility to provide one or more of the specific health care services required by subsection (k).
Regulated area means any area where airborne concentrations of BD exceed or can reasonably be expected to exceed the 8-hour time weighted average (8-hr TWA) exposure of 1 ppm or the short-term exposure limit (STEL) of 5 ppm for 15 minutes.
Table 1.--Minimum Requirements for Respiratory Protection for Airborne BD
Concentration of airborne BD (ppm) or condition of use | Minimum required respirator |
Less than or equal to 5 ppm (5 times PEL). | (a) Air-purifying half mask or full facepiece respirator equipped with approved BD or organic vapor cartridges or canisters. Cartridges or canisters shall be replaced every 4 hours. |
Less than or equal to 10 ppm (10 times PEL). | (a) Air-purifying half mask or full facepiece respirator equipped with approved BD or organic vapor cartridges or canisters. Cartridges or canisters shall be replaced every 3 hours. |
Less than or equal to 25 ppm (25 times PEL). | (a) Air-purifying full facepiece respirator equipped with approved BD or organic vapor cartridges or canisters. Cartridges or canisters shall be replaced every 2 hours. |
(b) Any powered air-purifying respirator equipped with approved BD or organic vapor cartridges. PAPR cartridges shall be replaced every 2 hours. | |
(c) Continuous flow supplied air respirator equipped with a hood or helmet. | |
Less than or equal to 50 ppm (50 times PEL). | (a) Air-purifying full facepiece respirator equipped with approved BD or organic vapor cartridges or canisters. Cartridges or canisters shall be replaced every (1) hour. |
(b) Powered air-purifying respirator equipped with a tight-fitting facepiece and an approved BD or organic vapor cartridges. PAPR cartridges shall be replaced every (1) hour. | |
Less than or equal to 1,000 ppm (1,000 times PEL). | (a) Supplied air respirator equipped with a half mask of full facepiece and operated in a pressure demand or other positive pressure mode. |
Greater than 1000 ppm | (a) Self-contained breathing unknown concentration, or apparatus equipped with a firefighting full facepiece and operated in a pressure demand or other positive pressure mode. |
(b) Any supplied air respirator equipped with a full facepiece and operated in a pressure demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in a pressure demand or other positive pressure mode. | |
Escape from IDLH conditions. | (a) Any positive pressure self-contained breathing apparatus with an appropriate service life. |
(b) A air-purifying full facepiece respirator equipped with a front or back mounted BD or organic vapor canister. |
Notes: Respirators approved for use in higher concentrations are permitted to be used in lower concentrations. Full facepiece is required when eye irritation is anticipated.
NOTE: However, this provision does not negate the ethical obligation of the physician or other licensed health care professional to transmit any other adverse findings directly to the employee.
NOTE: Copies of the non-mandatory appendices can be obtained from any Cal/OSHA Consultation Service office.
Cal. Code Regs. Tit. 8, § 5201
2. Change without regulatory effect amending subsections (b), (c)(1), (d)(2)(A)-(B), (d)(7)(B) and (p)(2) filed 12-23-97 pursuant to section 100, title 1, California Code of Regulations (Register 97, No. 52).
3. Amendment of former subsections (h)(1)-(h)(5)(C) including subsection renumbering and relettering resulting in newly designated subsections (h)(1)-(h)(3)(C), and amendment repealing appendix E and adding editorial reference filed 8-25-98; operative 11-23-98 (Register 98, No. 35).
4. Amendment of subsection (n) and repealer of subsections (n)(1)-(4) filed 7-6-99; operative 8-5-99 (Register 99, No. 28).
5. Amendment of subsection (h)(2)(A) filed 7-31-2003; operative 8-30-2003 (Register 2003, No. 31).
6. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of NOTE filed 5-6-2013; operative 5-6-2013 pursuant to Labor Code section 142.3(a)(4)(C). Submitted to OAL for printing only pursuant to Labor Code section 142.3(a)(4) (Register 2013, No. 19).
7. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of NOTE refiled 11-6-2013; operative 11-6-2013 pursuant to Labor Code section 142.3(a)(4)(C). Submitted to OAL for printing only pursuant to Labor Code section 142.3(a)(4) (Register 2013, No. 45).
8. Repealer of 11-6-2013 order by operation of law 5-6-2014 pursuant to Labor Code 142.3 (Register 2014, No. 19).
9. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of NOTE filed 5-5-2014; operative 5-6-2014 pursuant to Government Code section 11343.4(b)(3) (Register 2014, No. 19).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Change without regulatory effect amending subsections (b), (c)(1), (d)(2)(A)-(B), (d)(7)(B) and (p)(2) filed 12-23-97 pursuant to section 100, title 1, California Code of Regulations (Register 97, No. 52).
3. Amendment of former subsections (h)(1)-(h)(5)(C) including subsection renumbering and relettering resulting in newly designated subsections (h)(1)-(h)(3)(C), and amendment repealing appendix E and adding editorial reference filed 8-25-98; operative 11-23-98 (Register 98, No. 35).
4. Amendment of subsection (n) and repealer of subsections (n)(1)-(4) filed 7-6-99; operative 8-5-99 (Register 99, No. 28).
5. Amendment of subsection (h)(2)(A) filed 7-31-2003; operative 8-30-2003 (Register 2003, No. 31).
6. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of Note filed 5-6-2013; operative 5-6-2013 pursuant to Labor Code section 142.3(a)(4)(C). Submitted to OAL for printing only pursuant to Labor Code section 142.3(a)(4) (Register 2013, No. 19).
7. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of Note refiled 11-6-2013; operative 11-6-2013 pursuant to Labor Code section 142.3(a)(4)(C). Submitted to OAL for printing only pursuant to Labor Code section 142.3(a)(4) (Register 2013, No. 45).
8. Repealer of 11-6-2013 order by operation of law 5-6-2014 pursuant to Labor Code 142.3 (Register 2014, No. 19).
9. Amendment of subsection (l)(1), new subsections (l)(1)(A)-(C) and amendment of Note filed 5-5-2014; operative 5/6/2014 pursuant to Government Code section 11343.4(b)(3) (Register 2014, No. 19).