Regulations
US Labor Department - Occupational Safety and Health Standards
1910.157(c)(1) The employer shall provide portable fire extinguishers and shall mount, locate and identify them so that they are readily accessible to employees without subjecting the employees to possible injury.
1910.157(c)(4) The employer shall assure that portable fire extinguishers are maintained in a fully charged and operable condition and kept in their designated places at all times except during use.
Rules of the City of New York - Title 3 Fire Department §15-02
(3) It shall be unlawful for any person to service a portable fire extinguisher without a certificate of fitness for portable fire extinguisher servicing, except that a person training for such certificate of fitness may service portable fire extinguishers in the presence of and under the personal supervision of a certificate of fitness holder.
City of New York Fire Codes - Annual Service
906.2.1.2 Annual servicing and recharging shall be performed by a person or
company meeting the requirements of Section 901.6.3.1. Records of servicing and
recharging of portable fire extinguishers shall be provided and maintained in accordance
with NFPA 10. The required tag or label for servicing shall also include the following
information:
1. The name and certificate of fitness number of the person who serviced the portable
fire extinguisher.
2. The month and year the portable fire extinguisher was serviced.
3. The name, street address and telephone number of the portable fire extinguisher
servicing company, if any, servicing the portable fire extinguisher.