California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 3.2 - California Occupational Safety and Health Regulations (Cal/OSHA)
Subchapter 2 - Regulations of the Division of Occupational Safety and Health
Article 13 - Certification Requirements
Section 344.81 - Fixed and Mobile Tower Crane Certification

(a) Fixed tower cranes and mobile tower cranes subject to this article shall be examined, tested and certified pursuant to article 99 annually and in the case of a fixed tower crane whenever it is erected at a new site.

(b) If a fixed tower crane is relocated to a new position on the same project a new certification is required. This requirement does not apply to the climbing of the tower crane.

(c) Each annual certification of a fixed or mobile tower crane shall include examination and testing of the crane structure and its parts as required pursuant to sections 4884 et seq. of title 8 of the California Code of Regulations and manufacturer recommendations. In the case of any fixed tower crane the annual certification must include detailed non-destructive tests of the load hook, slewing ring, tower section and slewing ring bolts, as well as all structural welds in the crane's tower section, mast and the jibs shall be performed where applicable. All deficiencies shall be corrected prior to use.

Note: Written records of the tests and test procedures performed shall be maintained and made available to the Division upon request for a period of five years.