Versions of See prior versions of a law on LawServer 2024 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2023 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2022 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2020 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2019 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2016 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Exception. Regulations 2014 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Regulations 2013 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Regulations 2009 Connecticut General Statutes 20-123b – Permit for use of anesthesia required. Regulations