Versions of Montana Code 20-5-426. Emergency use of opioid antagonist in school setting -- limit on liability on LawServer 2023 Montana Code 20-5-426. Emergency use of opioid antagonist in school setting — limit on liability 2022 Montana Code 20-5-426. Emergency use of opioid antagonist in school setting — limit on liability 2021 Montana Code 20-5-426. Emergency use of opioid antagonist in school setting — limit on liability 2019 Montana Code 20-5-426. Emergency use of opioid antagonist in school setting — limit on liability 2018 Montana Code 20-5-426. Emergency use of opioid antagonist in school setting — limit on liability