- H.R. 10171August 27, 2026
- H.R. 10156August 27, 2026
- H.R. 10172August 27, 2026
- H.R. 10160August 27, 2026
- H.R. 10181August 27, 2026
- H.R. 10176August 27, 2026
- H.Res. 1496August 27, 2026
- H.R. 10164August 27, 2026
- H.R. 10170August 27, 2026
- H.Res. 1494August 27, 2026
- H.R. 10163August 27, 2026
- H.R. 10157August 27, 2026
- Administration
- Agriculture
- Agriculture, Nutrition, And Forestry
- Appropriations
- Armed Services
- Banking, Housing, And Urban Affairs
- Budget
- Commerce, Science, And Transportation
- Education and Workforce
- Energy And Commerce
- Energy And Natural Resources
- Environment And Public Works
- Ethics
- Finance
- Financial Services
- Foreign Affairs
- Foreign Relations
- Health, Education, Labor, And Pensions
- Homeland Security
- Homeland Security And Governmental Affa…
- Indian Affairs
- Indian and Insular Affairs
- Intelligence
- Judiciary
- Natural Resources
- Oversight And Government Reform
- Permanent Select Intelligence
- Rules
- Rules And Administration
- Science, Space, And Technology
- Select Intelligence
- Small Business
- Small Business And Entrepreneurship
- Subcommittee on Aviation
- Subcommittee on Border Security and Enf…
- Subcommittee on Coast Guard and Maritim…
- Subcommittee on Commodity Markets, Digi…
- Subcommittee on Conservation, Research,…
- Subcommittee on Counterterrorism and In…
- Subcommittee on Cybersecurity and Infra…
- Subcommittee on Disability Assistance a…
- Subcommittee on Economic Development, P…
- Subcommittee on Economic Opportunity
- Subcommittee on Emergency Management an…
- Subcommittee on Energy and Mineral Reso…
- Subcommittee on Federal Lands
- Subcommittee on Forestry and Horticultu…
- Subcommittee on General Farm Commoditie…
- Subcommittee on Health
- Subcommittee on Highways and Transit
- Subcommittee on Livestock, Dairy, and P…
- Subcommittee on Nutrition and Foreign A…
- Subcommittee on Oversight and Investiga…
- Subcommittee on Oversight, Investigatio…
- Subcommittee on Railroads, Pipelines, a…
- Subcommittee on Transportation and Mari…
- Subcommittee on Water Resources and Env…
- Subcommittee on Water, Wildlife and Fis…
- Transportation And Infrastructure
- Veterans' Affairs
- Ways And Means

S. 644
U.S. Senate•In Senate Committee
Summary
S. 644, the Modernizing Retrospective Regulatory Review Act, was introduced in the Senate on Feb 20, 2025 by Sen. Mike Lee (R) with 1 co-sponsor. It was referred to Homeland Security And Governmental Affairs, and last saw action on Feb 20, 2025: Read twice and referred to the Committee on Homeland Security and Governmental Affairs.
Record
Text
S. 644 has 1 co-sponsor.
sb644/introduced-in-senate.txt119 S644 IS: Modernizing Retrospective Regulatory Review ActU.S. Senate2025-02-20text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.II 119th CONGRESS 1st Session S. 644 IN THE SENATE OF THE UNITED STATES February 20, 2025 Mr. Lee (for himself and Ms. Lummis ) introduced the following bill; which was read twice and referred to the Committee on Homeland Security and Governmental Affairs A BILLTo improve retrospective reviews of Federal regulations, and for other purposes.1.Short titleThis Act may be cited as the Modernizing Retrospective Regulatory Review Act .2.Improving retrospective reviews of Federal regulations(a)DefinitionsIn this section:(1)Administrative Committee of the Federal RegisterThe term Administrative Committee of the Federal Register means the committee established under section 1506 of title 44, United States Code.(2)AdministratorThe term Administrator means the Administrator of the Office of Information and Regulatory Affairs.(3)AgencyThe term agency has the meaning given the term in section 3502 of title 44, United States Code.(4)Appropriate congressional committeesThe term appropriate congressional committees means—(A)the Committee on Oversight and Government Reform of the House of Representatives; and(B)the Committee on Homeland Security and Governmental Affairs of the Senate.(5)Director of GPOThe term Director of GPO means the Director of the Government Publishing Office.(6)Machine-readableThe term machine-readable has the meaning given the term in section 3502 of title 44, United States Code.(7)Retrospective review of a regulation of the agencyThe term retrospective review of a regulation of the agency means a review of regulations of the agency conducted after the regulation has been issued that is required by law or determined appropriate by the head of the agency.(b)Report on availability of existing regulations in machine-Readable format(1)In generalNot later than 180 days after the date of enactment of this Act, the Director of the Office of Management and Budget, acting through the Administrator and in consultation with the Director of GPO, the Archivist of the United States, and the Director of the Federal Register, shall submit to the appropriate congressional committees, a report on the progress of the Federal Government in making regulations of agencies available in machine-readable format.(2)Contents of reportThe report required by paragraph (1) shall include—(A)an assessment of whether agency regulations have been made available in a machine-readable format to the public; and(B)information regarding the recognition by the Administrative Committee of the Federal Register of the eCFR maintained by the Director of the Federal Register and the Director of GPO as an official legal edition of the Code of Federal Regulations.(c)Guidance on using technology to conduct retrospective reviews(1)In generalNot later than 18 months after the date of enactment of this Act, the Director of the Office of Management and Budget, acting through the Administrator, shall issue guidance on how the head of an agency can—(A)use technology (including algorithmic tools and artificial intelligence) to more efficiently, cost-effectively, and accurately conduct any retrospective review of the existing regulations of the agency, including how to identify, procure, and use such technology to identify through any such review regulations of the agency that—(i)are obsolete, ineffective, or insufficient;(ii)are excessively burdensome or should be improved;(iii)contain typographical errors;(iv)contain inaccurate cross references; or(v)are redundant, contradict, or overlap with any regulations or standards of the agency; and(B)adequately train personnel of the agency on how to use such technology.(2)Development of guidanceIn developing the guidance required pursuant to paragraph (1), the Administrator shall take into account any assessment or information included in the report required by subsection (b).(d)Agency retrospective review planNot later than 2 years after the date of enactment of this Act, the head of each agency shall submit to the Administrator and the appropriate congressional committees a plan that—(1)includes a detailed strategy for implementing the guidance issued pursuant to subsection (c) with respect to the regulations of the agency;(2)identifies any regulation of the agency, or categories of regulations of the agency, that the head of the agency—(A)is required by law to review after the applicable regulation is issued; or(B)determines would benefit from being reviewed after the regulation is issued; and(3)includes any additional information, data, or ex-post analysis determined necessary or useful by the head of the agency.(e)Agency implementationNot later than 180 days after the date on which the head of an agency submits the plan required by subsection (d), the head of the agency shall implement the strategy included in such plan with respect to any retrospective review of a regulation of the agency.
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2025-02-20
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
A bill to improve retrospective reviews of Federal regulations, and for other purposes.
Sponsors
Sen. Mike Lee (R) sponsors S. 644, and 1 member has co-sponsored it from the day it was introduced.
Committees
S. 644 went before 1 committee: Homeland Security and Governmental Affairs.

Actions
S. 644 has taken 2 actions since Feb 20, 2025.
| Chamber | Action | |||
|---|---|---|---|---|
Feb 20, 2025 | Senate | Read twice and referred to the Committee on Homeland Security and Governmental Affairs.Homeland Security and Governmental Affairs Committee | ||
Feb 20, 2025 | — | Introduced in Senate |
Votes
S. 644 has not gone to a roll call.
Related bills
1 bill is related to S. 644.
Titles
S. 644 goes by 3 titles, 1 of them short titles.
- Modernizing Retrospective Regulatory Review Act — Display Title
- Modernizing Retrospective Regulatory Review Act — Short Title(s) as Introduced
- A bill to improve retrospective reviews of Federal regulations, and for other purposes. — Official Title as Introduced
Lobbying
3 clients hired 3 firms and 6 registered lobbyists who named S. 644 in 11 quarterly filings, 2025 to 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Health Issues, Alcohol and Drug Abuse, Insurance, Medicare/Medicaid, Budget/Appropriations, Medical/Disease Research/Clinical Labs, Copyright/Patent/Trademark, Education.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| ACADIA HEALTHCARE | Healthcare | Tennessee | 1 | 6 | $360K |
| AMERICAN SOCIETY OF ADDICTION MEDICINE | Medical Professional Society | Maryland | 1 | 3 | — |
| MASSACHUSETTS MEDICAL SOCIETY | — | Massachusetts | 1 | 2 | — |
Firms
Registrants who filed on the bill, by filings.
| Registrant | Clients | Filings | Reported |
|---|---|---|---|
| KING & SPALDING LLP | 1 | 6 | $360K |
| AMERICAN SOCIETY OF ADDICTION MEDICINE | 1 | 3 | — |
| MASSACHUSETTS MEDICAL SOCIETY | 1 | 2 | — |
Lobbyists
Named on the filings that cite the bill.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| DAVID FARBER | 1 | 1 | 6 |
| SCOTT DZIENGELSKI | 1 | 1 | 5 |
| KELLY CORREDOR | 1 | 1 | 3 |
| CASEY ROJAS | 1 | 1 | 2 |
| ALLISON KASSIR | 1 | 1 | 1 |
| EMILY SILVERBERG | 1 | 1 | 1 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| MASSACHUSETTS MEDICAL SOCIETY | MASSACHUSETTS MEDICAL SOCIETY | 2025 first_quarter | $80K | 1st Quarter - Report |
| AMERICAN SOCIETY OF ADDICTION MEDICINE | AMERICAN SOCIETY OF ADDICTION MEDICINE | 2025 fourth_quarter | $70K | 4th Quarter - Report |
| AMERICAN SOCIETY OF ADDICTION MEDICINE | AMERICAN SOCIETY OF ADDICTION MEDICINE | 2025 third_quarter | $70K | 3rd Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2026 second_quarter | $60K | 2nd Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2026 first_quarter | $60K | 1st Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2025 fourth_quarter | $60K | 4th Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2025 third_quarter | $60K | 3rd Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2025 second_quarter | $60K | 2nd Quarter - Report |
| ACADIA HEALTHCARE | KING & SPALDING LLP | 2025 first_quarter | $60K | 1st Quarter - Report |
| MASSACHUSETTS MEDICAL SOCIETY | MASSACHUSETTS MEDICAL SOCIETY | 2025 second_quarter | $50K | 2nd Quarter - Report |
| AMERICAN SOCIETY OF ADDICTION MEDICINE | AMERICAN SOCIETY OF ADDICTION MEDICINE | 2026 first_quarter | $40K | 1st Quarter - Report |
Classification
The Congressional Research Service files S. 644 under Government Operations and Politics, one of its 31 policy areas, and gives it 4 legislative subjects.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 644’s is Government Operations and Politics.
s644/policy-areas.txtLegislative Subjects
S. 644 carries 4 of CRS’s legislative subjects, from Administrative law and regulatory procedures to Government information and archives.
s644/subjects.txtSource: congress.gov · legiscan.com
