MT SB201

Expands Montana's property decontamination laws to cover fentanyl contamination in addition to methamphetamine, applying to properties used as drug labs or contaminated by drug consumption

Requires Department of Environmental Quality certification for contractors performing contamination assessment or remediation, with penalties of up to $1,000 fine and 16 hours training for first offense, $2,000 and 24 hours for second offense

Increases required surface material samples from 3 to 6 per property, including at least 3 samples from HVAC systems if present

Creates a "volunteer property" category allowing property owners who self-discover contamination to pursue decontamination certification without being placed on the public contaminated property list

Requires out-of-state certified contractors to complete refresher training through the department or approved provider to qualify for Montana certification, replacing previous reciprocity provisions