CHEYENNE, Wyo. (AP) — Wyoming residents have four months starting Saturday to buy insurance under the federal Affordable Care Act.

State residents who aren't insured through an employer's plan or through another program such as Medicaid can start shopping for plans offered by two insurance companies: Blue Cross Blue Shield of Wyoming and WINHealth.

Wyoming doesn't operate its own health insurance exchange, or Internet site, where consumers can shop for coverage.

Instead, people may compare plans on www.healthcare.gov, the federal exchange site, or go directly to sites maintained by either company.

Wyoming Insurance Commissioner Tom Hirsig said the Affordable Care Act allows enrollment only between Nov. 15 and Feb. 15. He said there are exceptions for people in special circumstances, such as those who lose their jobs.