(a) Every insurer shall file with the Commissioner all forms, endorsements, contracts or policies proposed for use in Delaware in connection with workers’ compensation or employers’ liability insurance.

(b) As part of rate or form filing, each insurer shall file its classification of risks and all rules governing applications of classification system, including rules or practices relating to payroll audits and collection of premiums. All scheduled rating and deviation schedules shall also be filed with the Commissioner.

(c) Every rating system which provides deviations from normal premium rates shall be uniform in its application to all risks in the class for which the deviation is made. Deviations may remain in effect for a period of more than 1 year unless terminated by the Commissioner.

73 Del. Laws, c. 266, § ?1;