20 USC 1075: Limitations on individual federally insured loans and on Federal loan insurance
Text contains those laws in effect on May 5, 2022
http://uscode.house.gov/view.xhtml?req=(title:20%20section:1075%20edition:prelim)#amendment-note 

2006-Subsec. (a)(1)(A)(i)(I). Pub. L. 109–171, §8005(a)(1), substituted "$3,500" for "$2,625".

Subsec. (a)(1)(A)(ii)(I). Pub. L. 109–171, §8005(a)(2), substituted "$4,500" for "$3,500".

PL 109-171:
S.1932 - Deficit Reduction Act of 2005, 109th Congress (2005-2006)
https://www.congress.gov/bill/109th-congress/senate-bill/1932
H.R.4241 - Deficit Reduction Act of 2005, 109th Congress (2005-2006)
https://www.congress.gov/bill/109th-congress/house-bill/4241 

20 USC 1078: Federal payments to reduce student interest costs
Text contains those laws in effect on May 5, 2022
http://uscode.house.gov/view.xhtml?req=(title:20%20section:1078%20edition:prelim)#amendment-note 

2006-Subsec. (a)(3)(A)(v)(III). Pub. L. 109–171, §8014(j)(1), added subcl. (III).

Subsec. (a)(5). Pub. L. 109–171, §8004(b)(2), substituted "2012" and "2016" for "2004" and "2008", respectively.

Subsec. (b)(1)(A)(i)(I). Pub. L. 109–171, §8005(b)(1), substituted "$3,500" for "$2,625".

Subsec. (b)(1)(A)(ii)(I). Pub. L. 109–171, §8005(b)(2), substituted "$4,500" for "$3,500".

20 USC 1078-3: Federal consolidation loans
Text contains those laws in effect on May 5, 2022
http://uscode.house.gov/view.xhtml?req=(title:20%20section:1078-3%20edition:prelim) 

1992-Pub. L. 102–325, §419(a), substituted "Federal consolidation" for "Consolidation" in section catchline.

Subsec. (a)(3)(A)(i). Pub. L. 102–325, §419(b)(1)(A), substituted "$7,500" for "$5,000".

Subsec. (a)(3)(A)(ii). Pub. L. 102–325, §419(b)(1)(B), amended cl. (ii) generally. Prior to amendment, cl. (ii) read as follows: "is in repayment status, or in a grace period preceding repayment, and is not delinquent with respect to any required payment on such indebtedness by more than 90 days."

20 USC 1087dd: Terms of loans
Text contains those laws in effect on May 5, 2022
http://uscode.house.gov/view.xhtml?req=(title:20%20section:1087dd%20edition:prelim)

2008-Subsec. (a)(2)(A). Pub. L. 110–315, §464(a)(1), substituted "$5,500" for "$4,000" in cl. (i) and "$8,000" for "$6,000" in cl. (ii).

Subsec. (a)(2)(B). Pub. L. 110–315, §464(a)(2), substituted "$60,000" for "$40,000" in cl. (i), "$27,500" for "$20,000" in cl. (ii), and "$11,000" for "$8,000" in cl. (iii).

Subsec. (c)(1)(F). Pub. L. 110–315, §464(b)(1)(A), substituted "cancelled-" and cls. (i) to (iv) for "canceled upon the death of the borrower, or if he becomes permanently and totally disabled as determined in accordance with regulations of the Secretary;".