New Jersey Statutes Title 45. Professions and Occupations 45 § 16A-24

a. Secure, maintain and file with the board a certificate of general liability insurance from an insurance company authorized and licensed to do business in this State or proof of self-insurance approved by the Department of Banking and Insurance covering the Master HVACR contracting done by that HVACR contractor. The minimum amount of general liability insurance shall be $500,000 for the combined property damage and bodily injury to or death of one or more persons in any one accident or occurrence; and

b. File with the board its Federal Tax Identification number.

Every licensed HVACR contractor whose general liability policy is cancelled or nonrenewed shall submit to the board a copy of the certificate of general liability insurance for a new or replacement policy which meets the requirements of subsection a. of this section before the former policy is no longer effective.