(1949 Rev., S. 6177; 1951, S. 2835d; 1967, P.A. 437, S. 1; P.A. 78-280, S. 6, 127; P.A. 88-230, S. 1, 12; 88-326, S. 4; P.A. 90-243, S. 72; P.A. 91-311; P.A. 93-390, S. 5, 8; P.A. 96-51, S. 2; P.A. 03-119, S. 1; P.A. 05-20, S. 3; P.A. 09-123, S. 1; P.A. 10-5, S. 18; P.A. 11-19, S. 29; P.A. 12-145, S. 11; P.A. 13-149, S. 1; P.A. 14-235, S. 55; P.A. 15-118, S. 50; 15-247, S. 6; P.A. 18-41, S. 8; 18-43, S. 2.) History: 1967 act added Subsec. (b) re effective date of rates and rate standards; P.A. 78-280 replaced “Hartford county” with “judicial district of Hartford-New Britain” in Subsec. (a); P.A. 88-230 proposed to replace reference to “judicial district of Hartford-New Britain” with “judicial district of Hartford”, effective September 1, 1991, but said reference was deleted by P.A. 88-326; P.A. 88-326 required the commissioner to adopt regulations establishing a procedure for policy review and rephrased existing provisions; P.A. 90-243 substituted reference to “individual health insurance policy” for references to insurance against loss from sickness, bodily injury or accidental death; Sec. 38-165 transferred to Sec. 38a-481 in 1991; P.A. 91-311 amended Subsec. (b) to exclude Medicare supplement policy rates unless filed in accordance with Sec. 38a-474, added a new Subsec. (c) re filing of the required loss ratio guarantee form to preclude the claim that a particular policy has excessive rates and added the discretionary authority for the commissioner to adopt regulations re the terms of the loss ratio guarantee, added a new Subsec. (d) re premium rates if filed with a loss ratio guarantee and outlining the minimum requirements of a loss ratio guarantee in order to meet the commissioner's approval, the refund procedure for Connecticut policyholders and the procedures by which a policy form can be withdrawn and added Subsec. (e) defining “loss ratio” and “experience period”; P.A. 93-390 inserted new Subsec. (c) prohibiting the incorporation of factors for age, gender, previous claim or medical condition history into the insurer's rate schedule and relettered the remaining Subsecs. and internal references accordingly, effective January 1, 1994; P.A. 96-51 added Subsec. (g) to permit optional life insurance riders; P.A. 03-119 added Subsec. (h) re underwriting classifications; P.A. 05-20 made technical changes and amended provisions re regulations throughout, amended Subsec. (c) re Medicare supplements to reference “determinations to grant coverage” and plans “H” to “J”, inclusive, “issued prior to January 1, 2006,” re use of claims history and medical condition, amended Subsec. (d) to insert Subdiv. designators (1) and (2), and amended Subsec. (e)(5) to delete provisions re donations to Uncas-on-Thames Hospital, effective July 1, 2005; P.A. 09-123 amended Subsec. (h) by adding Subdiv. (3) prohibiting use of certain prescription drug history of an individual in underwriting and making technical changes, effective January 1, 2010; P.A. 10-5 made a technical change in Subsec. (b), effective May 5, 2010; P.A. 11-19 amended Subsec. (c) to delete provisions re Medicare supplement plans “H” to “J”; P.A. 12-145 made a technical change in Subsec. (d), effective June 15, 2012; P.A. 13-149 amended Subsec. (a) by adding provision requiring for rate filings an actuarial memorandum that includes pricing assumptions and claims experience, premium rates and loss ratios from inception of the policy, amended Subsec. (b) by deleting provision re 30-day period after which policy is deemed approved, deleted former Subsecs. (d) and (e) re loss ratio guarantee, redesignated existing Subsecs. (f), (g) and (h) as Subsecs. (d), (e) and (f), and made technical changes in redesignated Subsec. (e), effective June 21, 2013; P.A. 14-235 amended Subsec. (d) to delete former Subdiv. (2) re definition of “experience period” and make conforming changes; P.A. 15-118 made technical changes in Subsecs. (a) to (c); P.A. 15-247 amended Subsec. (a) by adding definition of “loss ratio”, amended Subsec. (b) by deleting provision re 30-day period for disapproval of rate, amended Subsec. (d) by deleting definition of “loss ratio” and adding provision re reduction of payments on basis of Medicare eligibility, deleted former Subsec. (f) re prohibited underwriting practices, added new Subsec. (f) re treatment of health insurance issued to association or other insurance arrangement as individual health insurance, added Subsec. (g) re requirements for individual policies subject to Affordable Care Act and grandfathered and nongrandfathered plans, and made technical and conforming changes, effective July 10, 2015; P.A. 18-41 amended Subsec. (a) by adding provisions re inclusion of information and data required under Sec. 38a-479qqq and accounting for rebates in manner specified in Sec. 38a-479rrr and replacing “shall” with “may” re commissioner's authority to adopt regulations, effective January 1, 2020; P.A. 18-43 amended Subsec. (g)(2) by designating existing provision re policies subject to Affordable Care Act be offered on guaranteed issue basis with respect to all eligible individuals or dependents as Subpara. (A), adding Subpara. (B) re special enrollment periods, and adding provisions re coverage under Subpara. (B) and enrollment in individual health insurance policy, effective January 1, 2019. Annotation to former section 38-165: Cited. 186 C. 507.