California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 2 - Safe Practices and Personal Protection
Article 7 - Miscellaneous Safe Practices
Section 3311 - Flarebacks

(a) To provide greater safety in lighting and relighting fixed fired equipment, the employer shall designate one or more employees who shall be trained in the safe lighting and relighting of the equipment. It shall be the responsibility of the employer to limit lighting and relighting of the equipment to employees so designated. It shall be the responsibility of the employees to follow the instructions given them. Copies of the instructions shall be prominently displayed at a location near the equipment.

(b) In addition to the above fire boxes or combustion chambers shall be purged or allowed sufficient time to vent themselves before a source of ignition is introduced into them.

(c) Provision shall be made, for the furnishing of extension lighting rods, where their use is indicated. Valves and other controls shall be so located as to avoid placing the employee in an unsafe position if a flareback occurs.