; and (2) by adding at the end the following: (5) Collateral (A) Types of collateral An applicant or infrastructure partner may propose tangible and intangible assets as collateral, exclusive of goodwill. The Secretary shall evaluate each such asset and— (i) shall accept a net liquidation value of collateral; and (ii) shall consider and may accept— (I) the market value of collateral; or (II) in the case of a blanket pledge or assignment of an entire operating asset or basket of assets as collateral, the net liquidation value, the market value of assets, or, the market value of the going concern, considering— (aa) inclusion in the pledge of all the assets necessary for independent operational utility of the collateral, including tangible assets such as real property, track and structure, equipment and rolling stock, stations, systems and maintenance facilities and intangible assets such as long-term shipping agreements, easements, leases and access rights such as for trackage and haulage; (bb) interchange commitments; and (cc) the value of the asset as determined through the cost or market approaches, or the market value of the going concern, with the latter considering discounted cash flows for a period not to exceed the term of the direct loan or loan guarantee. (B) Appraisal standards In evaluation of appraisals of collateral under subparagraph (A), the Secretary shall consider— (i) adherence to the substance and principles of the Uniform Standards of Professional Appraisal Practice, as developed by the Appraisal Standards Board of the Appraisal Foundation; (ii) performance of the appraisal by licensed or certified appraisers as may be required by the State of jurisdiction for the type of asset being appraised; and (iii) the qualifications of the appraisers to value the type of collateral offered. . 7. Repayment of RRIF loans Section 502(g)(1) of the Railroad Revitalization and Regulatory Reform Act of 1976 ( 45 U.S.C. 822(g)(1) ) is amended— (1) in subparagraph (A) by striking 35 and inserting 50