The National Defense Authorization Act is the bill that sets annual defense policy. It moves through a fixed cycle each year. First comes the President's budget request in February. Committee hearings and markups follow in the spring. Floor votes and a conference close the cycle in the fall. According to a Congressional Research Service primer updated in December 2025, FY2025 marked the 64th straight year with an enacted defense authorization.
Authorization and money are separate acts. The act names programs and sets policy. Appropriations bills provide the cash months later. The contracting rules inside the act still reach deep into shipbuilding, as this account of how fixed-price incentive contracts shape Navy shipbuilding shows.
The defense authorization process runs on the congressional calendar, not on the fiscal year of the money it shapes. This guide sits in the site's government news section. It follows each stage in order, with the documents that define it.
What Does an Authorization Act Actually Do?
More than its name suggests. According to the CRS primer, the act authorizes funds for the Defense Department and for Energy Department nuclear weapons programs. It also sets defense policies and restrictions. Unlike an appropriations bill, it grants no budget authority. The service adds that it has long signaled sentiment on later funding. Readers following this should also see Navy's FY2026 Budget Request Puts $20.8 Billion Into Base Shipbuilding, With Reconciliation Funds to Follow.
The dual role explains the bulk. Policy provisions ride next to dollar figures. A shipbuilding account and a procurement restriction can share one section. Committees treat the bill as their main vehicle for defense law each year. Titles sort the rest: procurement, research, operations, maintenance, and personnel, with funding tables keyed to each account.
How Does the Cycle Start Each Year?
The first Monday in February is the starting gun. The President's budget request reaches Congress then, according to the CRS primer. The Administration often sends policy proposals with it. The Defense Department adds its own legislative packages. The House and Senate Armed Services Committees then work in parallel.
Each committee holds posture hearings next. Senior civilian and military leaders testify on the request. Subcommittees hold narrower hearings on their own programs. That record feeds the bill.
What Happens in Markup?
Markup is where the bill takes shape. Each subcommittee first considers its chair's mark. That draft carries funding recommendations for its portion of the bill. The panel amends it and votes to report it upward. The full committee then takes up every piece and votes on amendments.
- Late April or May: committees ready authorizing bills for markup, per the CRS timeline.
- Subcommittee stage: each panel amends and reports its share of the bill.
- Full committee: the panel completes one amended bill and a committee report.
Reports matter after the vote. They explain intent and direct agencies. They carry no force of law.
How Do the Chambers Reach One Bill?
Each chamber passes its own version first. The texts rarely match. A conference committee, drawn mostly from the two armed services panels, resolves the gaps. It files a conference report, which gets floor votes without further amendment. In the Senate, ending debate on that report may take three-fifths of members, per the primer. The pace matters because many authorized authorities lapse at the end of the fiscal year. Conferences therefore aim to finish before October 1, per the primer.
Once both chambers agree, the act is enrolled and sent to the President. The FY2025 law ran to 794 pages of bill text, with discretionary authorizations of $883.7 billion, according to the CRS report.
Conclusion: A Cycle Built on Repetition
Watch the cycle stage by stage and the pattern holds. February frames the argument. Spring markups fix the committees' positions. The conference settles the text before October. As of December 2025, the CRS record counts 64 straight enacted authorizations. That record of on-time work is what makes each year's markup worth close reading.
