This information is provided free of charge by the Department of Industrial Relations
from its web site at www.dir.ca.gov. These regulations are for the
convenience of the user and no representation or warranty is made that the information
is current or accurate. See full disclaimer at http://www.dir.ca.gov/od_pub/disclaimer.html.
Subchapter 1. Unfired Pressure Vessel Safety Orders
Article 5. LP-Gas Systems.
§471. Control of Products in Tanks and Cylinders.
(a) No LP-Gas shall be transported or delivered into any vessel covered by these
Orders until first odorized using a warning agent of such character that the gases
are detectable, by a distinct odor, down to a concentration in air of not over
one-fifth the lower limit of flammability.
Exception: When the LP-Gas is to be used exclusively in a process where the presence
of an odorant would make the LP-Gas unfit for use in the process and for deliveries
between refineries or between producing wells and refineries, a waiver may be
obtained from the Division upon written request.
Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor
Code; and Section 13241, Health and Safety Code.
1. Amendment filed 12-8-72 as procedural and organizational; effective upon
filing (Register 72, No. 50).
2. Amendment of section, including repealer of figure 1, and new Note filed
12-4-96; operative 1-3-97 (Register 96, No. 49).
3. Repealer and new section filed 1-30-2002; operative 3-1-2002 (Register 2002,
Go Back to Article 5 Table of Contents