Conn. Gen. Stat. § 19a-193b
An ambulance service, as defined in section 19a-175, shall make a good faith effort to determine whether a person has health insurance coverage prior to attempting to collect payment from such person for services provided to such person. If the ambulance service determines that such person has health insurance coverage, such ambulance service shall not attempt to collect payment, other than a coinsurance, copayment or deductible, for any covered medical services provided to such person prior to receiving oral or written notice from such person's health insurer that it declines to pay for such services. If the health insurer does not pay for such services or provide notice that it declines to pay for such services on or before the sixtieth calendar day after receiving a bill for such services, the ambulance service may attempt to collect payment from such person for such services.
Conn. Gen. Stat. § 19a-193b
( P.A. 15-110, S. 1.)