CT.gov Home drs-beta Current: 1990 Policy Statements Trending Now For Businesses For Individuals Practitioners Forms Publications Research Library Search Department of Revenue Services Search the current Agency with a Keyword Filtered Topic Search 1990 Policy Statements PS 90(1), Dog Breeders PS 90(2), Modular Home Units PS 90(3), Printers PS 90(4), Newspapers PS 90(5), Connecticut Corporation Business Tax Combined Return Filing Requirements Applicable to Section 12-223a(1) of the Connecticut General Statutes PS 90(6), Charitable Contributions Not Indicative of Domicile