Rules

Michigan House Bill 6303 amends the state's construction code act to prohibit local enforcing agencies from requiring air tightness testing for commercial buildings. The bill specifically prevents the director of the construction code from creating rules that mandate this type of test to verify the continuity of a building's envelope. It directly affects commercial property owners and builders by removing a potential regulatory requirement for verifying how well a structure seals against air leakage. This legislation is tied to House Bill 6304 and will not take effect unless that companion bill is also enacted into law.

Michigan House Bill 6304 amends the Stille-DeRossett-Hale single state construction code act to update and clarify definitions used in the state's building regulations. The bill introduces new terms such as "air tightness testing," "building envelope," and "cost-effective" regarding energy efficiency standards, while refining existing definitions for concepts like "agricultural purposes," "mobile home," and "structure." These changes directly affect local governments, building officials, and property owners by establishing a more precise legal framework for enforcing construction codes. The bill is tied to HB 6303 and will not take effect unless that companion legislation is also enacted into law.

This House resolution urges the EPA Director to reexamine air quality non-attainment designations in West Michigan, specifically including Allegan County. It argues that current federal standards fail to account for pollution originating from urban areas across Lake Michigan, such as Chicago and Milwaukee, which affects local communities not responsible for those emissions. The text notes that these designations restrict manufacturing expansion and economic development in the region. Copies of the resolution are directed to be sent to the EPA Administrator.

SB 71 amends Michigan's penal code to specifically designate the portions of the Mackinac Bridge not open to the public as a "key facility." This means unauthorized entry to these restricted bridge areas would be prohibited, with violations punishable by up to four years in prison or a $2,500 fine. The law requires these areas to be clearly marked with signage meeting specific size and spacing standards (minimum 1-inch letters, 50 square inches per sign, spaced for visibility). The bill does not affect public access to bridge sections already open to pedestrians or restrict lawful public gatherings.

HB 4120 exempts certain aircraft purchases and maintenance from Michigan's use tax. It applies to domestic air carriers using aircraft over 6,000 pounds for cargo, passenger, or combined transport, and to parts/materials affixed to such aircraft under specific conditions (e.g., aircraft not based in Michigan). The bill also exempts temporary aircraft in Michigan for maintenance or sales if they leave within 15 days, and extends tax exemptions to interstate trucking equipment used across state lines. These changes reduce tax burdens for airlines, aircraft maintenance providers, and interstate trucking companies operating in Michigan.