Mont. Code Ann. § 18-4-125

All using agencies shall cooperate with the department in the preparation of statistical data concerning the procurement, usage, and disposition of all supplies and services, and the department may employ trained personnel as necessary to carry out this function. All using agencies shall furnish such reports as the department may require concerning usage, needs, and stocks on hand, and the department may prescribe forms to be used by the using agencies in requisitioning, ordering, and reporting of supplies and services.