Mich. Comp. Laws § 324.508
The department may establish and collect fees and rentals for any photographic or publication products or services that the department provides. The fees and rentals shall be credited to a separate fund of the state treasury and shall be available for appropriation to the department of natural resources and used to provide the photographic or publication products or services. The fees and rentals shall not exceed the material costs to the department of providing the products or services. In addition, the expenditures made in a fiscal year to provide the photographic and publication products or services shall not exceed the amount appropriated for that purpose for that fiscal year, plus any amounts carried over from previous fiscal years, or the amount of fees and rentals actually received during that fiscal year, plus any amounts carried over from previous fiscal years, whichever is less. Any unexpended fees and rentals collected pursuant to this section, along with any excess collections from prior fiscal years, shall be carried over into subsequent fiscal years and shall be available for appropriation for the purposes described in this section.
MCL 324.508