IA HSB301

Establishes a new regulatory framework for on-farm anaerobic digester systems that process manure from animal feeding operations to produce biogas (renewable fuel) and digestate (nutrient-rich material for cropland application)

Requires construction permits from the Department of Natural Resources before building digester structures, with application fees not exceeding $250 for feedstock storage structures and $250 for digestate processing structures

Imposes separation distance requirements for digester structures based on existing air quality and water quality standards that apply to confinement feeding operations, treating the digester system and its identified animal feeding operation as a single entity

Requires digestate management supplements to be attached to manure management plans or nutrient management plans when digestate is applied to land, documenting land area calculations and nutrient concentrations

Takes effect upon enactment, with DNR continuing current regulatory practices until the director publishes notice that all implementing rules have been adopted