N.H. Rev. Stat. § 659:9-a
The city clerk shall establish uniform practices and procedures that conform to state and federal law for the conduct of elections at all polling places within the city. The moderators and other election officials who conduct elections at the individual polling places within the city shall comply with the uniform procedures established for the city by the city clerk. The secretary of state shall resolve any conflicting interpretations of state and federal laws arising between the city clerk and other election officials. The legislative body of any city may vote to have the duties of the ward officers relative to the selection and equipping of polling places assigned to the city clerk.
RSA 659:9-a
2006, 78:2, eff. July 1, 2006. 2021, 177:2, Pt. I, Sec. 1, eff. Sept. 28, 2021.