There is a legislative audit committee which is a permanent joint committee of the legislature.
Mont. Code Ann. § 5-13-201
Legislative audit committee
Known as the The Legislative Audit Act
The act spans §§ 5–5 (27 sections).
En. 79-2303.1 by Sec. 1, Ch. 367, L. 1974; amd
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.