WORKMEN'S COMPENSATION - PREMIUMS - INDUSTRIAL INSURANCE - EXTRAHAZARDOUS OCCUPATIONS Office employees of employers under classes 7-1, 9-1, 9-2 and 46-1 are required by the provisions Rem. Rev. Stat. (Sup.) § 7676 (a) (cf. RCW 51.20.010 et seq. ) to be reported under their respective classes and class 49-4 applies only to such office employees of an employer subject to the compulsory provisions of the Act as are not covered by some other specific classification.