The issue in this grievance raises the question of safety under Article XIV, Section 1 of the National Agreement, relevant to the U.S. Postal Service's use of mercury vapor lamps. Our investigation reveals that there are no Occupational Safety and Health Administration (OSHA) standards established regarding the use of mercury vapor lamps. However, the Food and Drug Administration, Bureau of Radiological Health (BRH) Standard 21 CFR 1040.30 has been complied with by the U.S. Postal Service, in that, self-extinguishing lamps are utilized, thus, alleviating the danger of broken outer globes and subsequent exposure to ultraviolet radiation. The recommended workroom lighting system employs 400-watt
high pressure sodium or 400-watt metal halide HID fixtures designed for a 50 footcandle general lighting level with maximum and minimum levels not more than 1/6 above and below this design value, supplemented with case lights for task lighting. The HID lighting should only be used when mounting height is fifteen (15) feet or greater.
Document Type: USPS Position Letter
APWU National Grievance Number: H8C3WC35843
Craft: Clerk