Versions of Connecticut General Statutes 12-1a - Department of Revenue Services. Commissioner. Successor department to state Tax Department on LawServer 2023 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2022 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2020 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2019 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2016 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2014 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2013 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department 2009 Connecticut General Statutes 12-1a – Department of Revenue Services. Commissioner. Successor department to state Tax Department