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Utah only released premiums for "silver" plans — the healthcare law classifies policies as bronze, silver, gold or platinum based on how much they cover.

Two categories of plans will likely carry lower premiums than silver policies — "bronze" plans and catastrophic plans, which offer limited coverage and are available only to people younger than 30. Utah has not yet released rate information for those policies.

Utah's exchange will offer 99 healthcare plans from six insurance companies, according to the Tribune. The new marketplaces are set to open in each state on Oct. 1, to begin enrolling people in coverage that begins Jan. 1.