Environment

HB 4257 defines key terms related to waste management, specifically for anaerobic digestion byproducts (digestate) and their "beneficial use" in agriculture or construction. It creates five distinct categories of beneficial use (e.g., soil application at agronomic rates, road base, or construction fill) with specific environmental safeguards like runoff prevention and groundwater protection. The bill directly affects waste management facilities, farmers, and construction entities handling digestate or ash by clarifying legal standards for its use. These definitions ensure consistent application under existing environmental rules, requiring materials to meet soil-nutrient balance and pollution prevention criteria.

HB 4283 amends Michigan's Clean and Renewable Energy Act to allow electricity generated from Reciprocating Internal Combustion Engine (RICE) generators to count toward meeting the state's renewable energy portfolio standards. This change directly affects electric providers, including cooperatives and multistate utilities, that must meet specific renewable energy targets. The bill adds a new provision specifying that RICE-generated electricity can be used as renewable energy credits toward compliance. This provides electric providers with an additional compliance option for meeting the state's renewable energy requirements.