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Chapter 3.2. California Occupational Safety and Health Regulations (CAL/OSHA)
Subchapter 2. Regulations of the Division of Occupational Safety and Health

Article 7. Blaster's License

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§344.20. Blaster's License--Application and Examination.

(a) Every person requesting a Blaster's License shall submit a completed application form to the Division.

(b) The Division shall evaluate every applicant for a Blaster's License. This evaluation will be conducted of the person's training and experience as shown on the application.

(c) In order to obtain a Blaster's License, the applicant shall pass a written or an oral qualifying examination given at such times and places as determined by the Division. The examination shall include questions related to the license classification requested. Field tests may also be required as deemed necessary to determine the candidate's qualifications to perform the duties of a blaster.

(d) License classification.

Class  Category                 Description 
A    Unlimited           All types of blasting. 
B    General Above GroundAll phases of blasting operations in quarries, 
       open pit mines, and above ground construction. 
C    General Underground All phases of blasting operations in under 
       ground mines, shafts, tunnels, and drifts. 
D    Demolition          All phases of demolition. 
E    Limited             Specific blasting operations indicated on the 

(e) The Blaster's License may be endorsed by any limitation or classification the Division may determine.

(f) The Blaster's License is not transferable.

NOTE: Authority cited: Sections 6308, 7314, 7350, 7720-7724, 7728, 7904 and 7991, Labor Code. Reference: Sections 7314, 7350, 7720-7724, 7728, 7904 and 7991, Labor Code.


1. New Article 7 (Sections 344.20-344.22) filed 11-30-77; effective thirtieth day thereafter (Register 77, No. 49).

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