STEMMED TO THE COLLAR.
Los Angeles Municipal Code § 57.5607.16.4.14
in effectSEC. 57.5607.16.4.14. STEMMED TO THE COLLAR.
All blast holes shall be stemmed to the collar or to a point to sufficiently confine the charge and minimize the chance of injury to personnel by flying material.
Source: City of Los Angeles, Charter and Codes (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/los_angeles/latest/lamc/0-0-0-351244Fetched: 10/24/2026
