AZ SB1331

Allows insurers to file up to six uniform percentage deviations that decrease or increase the statewide rate portion of their rating organization's rate filing, with each deviation based on underwriting rules that establish logical risk distinctions.

Permits insurers to file subclassification rate-related rules deviating from their rating organization's rules or schedule rating plan, but prohibits applying both a deviation and schedule rating plan within the same insurance company.

Requires each deviation filing to remain on file with the director for at least 30 days before becoming effective, though the director may authorize earlier effectiveness upon written application by the insurer.

Specifies that paragraph 1 deviations expire December 31 annually unless disapproved sooner by the director, while paragraph 2 deviations continue until the insurer withdraws them or the director determines they no longer meet prescribed standards.

Requires insurers to simultaneously send deviation filings to their rating organization and any designated rating organization, and mandates the director notify the industrial commission within 10 days of receiving any disapproval from a rating organization.