The following costs shall not be charged as direct or joint costs to NPSL operations:

(a) Bonus payments to the United States;

(b) Interest (except as permitted under § 1220.011(g));

(c) Depreciation, depletion, amortization, or any other charge for capital recovery for materiel charged to the NPSL capital account under § 1220.011(c), except as explicitly provided by the allowance for capital recovery calculated according to § 1220.020;

(d) The cost of taking inventory;

(e) Research and development costs;

(f) The following legal expenses:

(1) The costs of litigation against the Federal government;

(2) Fines or penalties levied by any Federal agency;

(3) Settlement of claims or other litigation resulting from the lessee's violation of regulatory requirements or negligence; and

(4) The cost of the lessee's legal staff or expense of outside attorneys, except as explicitly allowed under § 1220.011(f);

(g) The following employee relocation costs (whether incurred by the employee or the lessee):

(1) Loss on the sale of a home;

(2) Purchase price of a home in the new location;

(3) Payments for employee income taxes incident to reimbursed relocation costs; and

(4) Any relocation cost in connection with an employee move that is for the primary benefit of the lessee's non-NPSL operations;

(h) The lessee's own cost of administering employee benefit plans;

(i) The cost of acquiring or constructing shore base facilities and real property improvements that are charged to NPSL operations on a rental basis under § 1220.011(g);

(j) Rentals on any facilities, the investment costs of which have been charged either directly or as allocable joint costs, to the NPSL capital account; and

(k) Pre-NPSL expenditures.