Chapter 146 of the General Laws is hereby amended by inserting after section 88 the following section:-

Section 88A. The sprinkler fitter’s examining and licensing requirements, under sections 81to 86, inclusive, shall not apply to individuals who are regularly in the employ of a public water system and perform sprinkler fitting work related to the emergency installation and repair, and the testing and maintenance of hydrants and appurtenant pipes and valves that are within the jurisdiction of the public water system; provided, that this exemption shall only apply to work related to hydrants and appurtenant pipes and valves and shall not include work on any other component of a fire protection sprinkler system. Individuals who are regularly in the employ of a public water system may perform sprinkler fitting work related to the installation, repair, testing and maintenance of hydrants and appurtenant pipes and valves of a multi-purpose system within the jurisdiction of the public water system, but shall not include work on any other component of a fire protection sprinkler system.  The department may promulgate rules and regulations to enforce this section.