N.H. Code Admin. R. Env-A 1815.12
Each license and certification issued under this chapter shall expire one year from the date of issuance, unless the license or certification is revoked prior to that date.
Source. (See Revision Note #1, Revision Note #2, and Revision Note #3 at chapter heading for Env-A 1800) #14104, eff 11-1-24, EXPIRES: 11-1-34