Vinyl chloride
For Vinyl chloride, cfr section is 1910.1017; action level is 0.5 ppm averaged over an 8-hour work day; pel is No employee may be exposed to vinyl chloride at concentrations greater than 1 ppm averaged over any 8-hour period; surveillance trigger is exposed, without regard to the use of respirators, to vinyl chloride in excess of the action level; exam frequency is Examinations must be provided in accordance with this paragraph at least annually, verified against its source on 2026-09-17.
- Substance
- Vinyl chloride verified
- CFR section
- 1910.1017 verified
- Action level
- 0.5 ppm averaged over an 8-hour work day verified
- PEL
- No employee may be exposed to vinyl chloride at concentrations greater than 1 ppm averaged over any 8-hour period verified
- Surveillance trigger
- exposed, without regard to the use of respirators, to vinyl chloride in excess of the action level verified
- Exam frequency
- Examinations must be provided in accordance with this paragraph at least annually verified
- Record retention
- Medical records shall be maintained for the duration of the employment of each employee plus 20 years, or 30 years, whichever is longer verified
What the source says
(ii) [Reserved] (iii) Medical records shall be maintained for the duration of the employment of each employee plus 20 years, or 30 years, whichever is longer. (n) The employer must, within 15 working days after the receipt of the results of any monitoring performed under this section, notify each affected employee of these results and the steps being taken to reduce exposures within the permissible exposure limit either individually in writing or by posting the results in an appropriate location that is accessible to affected employees. Appendix A to § 1910.1017 —Supplementary Medical Information When required tests under paragraph (k)(1) of this section show abnormalities, the tests should be repeated as soon as practicable, preferably within 3 to 4 weeks. If tests remain abnormal, consideration should be given to withdrawal of the employee from contact with vinyl chloride, while a more comprehensive examination is made.
— law.cornell.edu, retrieved 2026-08-12
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Action level
(3) This section applies to the transportation of vinyl chloride or polyvinyl chloride except to the extent that the Department of Transportation may regulate the hazards covered by this section. (b) Definitions—(1) Action level means a concentration of vinyl chloride of 0.5 ppm averaged over an 8-hour work day .
PEL
(9) Polyvinyl chloride means polyvinyl chloride homopolymer or copolymer before such is converted to a fabricated product. (10) Vinyl chloride means vinyl chloride monomer. (c) Permissible exposure limit. (1) No employee may be exposed to vinyl chloride at concentrations greater than 1 ppm averaged over any 8-hour period, and (2) No employee may be exposed to vinyl chloride at concentrations greater than 5 ppm averaged over any period not exceeding 15 minutes.
Surveillance trigger
(2) All materials relating to the program shall be provided upon request to the Assistant Secretary and the Director. (k) Medical surveillance. A program of medical surveillance shall be instituted for each employee exposed, without regard to the use of respirators, to vinyl chloride in excess of the action level.
Exam frequency
(D) Past history of blood transfusions; and (E) Past history of hospitalizations. (iii) A serum specimen shall be obtained and determinations made of: (A) Total bilirubin; (B) Alkaline phosphatase; (C) Serum glutamic oxalacetic transaminase (SGOT); (D) Serum glutamic pyruvic transaminase (SGPT); and (E) Gamma glustamyl transpeptidase. (2) Examinations must be provided in accordance with this paragraph at least annually.
Record retention
(B) Include any additional information necessary to determine individual employee exposures where such exposures are determined by means other than individual monitoring of employees; and (C) Be maintained for not less than 30 years. (ii) [Reserved] (iii) Medical records shall be maintained for the duration of the employment of each employee plus 20 years, or 30 years, whichever is longer.
— all from law.cornell.edu, retrieved 2026-08-12
Source
- law.cornell.eduhttps://www.law.cornell.edu/cfr/text/29/1910.1017