Investments and expenses.

(a) Investment and expenses not used and useful in the ordinary course. The following investments and expenses are presumed not used and useful (and thus unreasonable): (1) Personal expenses, including but not limited to personal expenses for food and beverages, housing, such as rent or mortgages, vehicles for personal use, and personal travel; (2) Tangible property not logically related or necessary to offering voice or broadband services; (3) Political contributions; (4) Membership fees and dues in social, service and recreational, or athletic clubs or organizations; (5) Penalties or fines for statutory or regulatory violations; and (6) Penalties or fees for late payments on debt, loans, or other payments. (b) Non-customary investments and expenses. Unless customary for similarly situated companies, the following investments and expenses are presumed not used and useful (and thus unreasonable): (1) Personal benefits, such as gifts, housing allowances, and childcare, that are not part of taxable compensation; (2) Artwork and other objects that possess aesthetic value that are displayed in the workplace; (3) Aircraft, watercraft, and off-road vehicles used for work and work-related purposes; (4) Cafeterias and dining facilities; (5) Charitable donations; (6) Entertainment; (7) Food and beverage expenses for work and work-related travel; (8) Membership fees and dues associated with professional organizations; (9) Scholarships; and (10) Sponsorships of conferences or community events.