Mississippi Main Street Revitalization Grant Program Act; revise certain provisions.

Updated the bill header and version designation from 'Committee Substitute' to 'As Passed the House' to reflect legislative progress.

Added a new subsection creating a special 'Mississippi Main Street Revitalization Grant Program Fund' in the State Treasury, detailing its sources and maintenance.

Added 'Business improvement districts' as an eligible recipient for grants under the program.

Changed the definition of the administering body from 'Mississippi Development Authority' to 'Administrator' in one instance, while retaining the full authority name elsewhere.

Added a new priority provision stating that applicants who did not receive a grant in the prior year will receive priority for the following year.

Added a new requirement that projects must align with the Main Street Approach and Guiding Principles or a comparable community plan.

Added a new provision allowing the Mississippi Development Authority to enter into cooperative agreements with colleges, historical societies, state/local agencies, and nonprofits.

Added a new provision allowing the Authority to require recipients to seek technical assistance from the MMSA for historic property conservation.

Added a new provision granting the Mississippi Development Authority the authority to facilitate transfers of property interests acquired through the program to state or local governments.