MI SB0404

Modifies financial assurance requirements for landfill operators, allowing perpetual care funds to be established as trusts, escrow accounts, or perpetual care fund bonds instead of only bonds.

Establishes standardized closure and postclosure cost estimates for type II landfills based on per-acre costs (e.g., $20,000 base closure cost, $200 annual final cover maintenance) that can be adjusted for inflation annually.

Requires landfill operators to increase perpetual care funds by 75 cents per ton (or 25 cents per cubic yard) of solid waste disposed until reaching a maximum fund amount of $1,156,000 (adjusted annually for inflation).

Allows landfill operators to request reductions in bonds and financial assurance based on completed partial closures, final closures, and postclosure maintenance, with the department required to respond within 60 days.

Repeals section 11524 and permits termination of financial assurance requirements once a landfill has completed postclosure monitoring and maintenance, subject to department approval and consistency review.