N.H. Code Admin. R. Fire 202.11
(c) Once a witness has been sworn or affirmed at any hearing, it shall not be necessary for him or her to be sworn or affirmed again for subsequent testimony on the same day and in the same case. The record of the proceeding shall indicate that a person was recalled to testify, and reminded that he or she was still under oath or affirmation.
Source #7332, eff 8-1-00; ss by #9218, INTERIM, eff 8-1-08; ss by #9319-A, eff 11-12-08 (from Fire 201.15); ss by #12225-A, eff 6-28-17 (formerly Fire 201.16) (See Revision Note at chapter heading for Fire 200)