(a) This account must include the cost of labor, materials used and expenses incurred not provided for in other accounts.

(b) This account must include the following labor items:

(1) General clerical and stenographic work.

(2) Miscellaneous labor.

(c) This account must include the following materials and expenses items:

(1) Communication service.

(2) Miscellaneous office supplies and expenses and stationery and printing other than those specifically provided for in accounts 902 and 903 (§§367.9020 and 367.9030).