Skip menusUNDS Uniform National Discharge Standards  
Click for Purpose and Background
Click for Applicability of UNDS
UNDS Timeline
Click for Key Players
Click for Regulatory Development Process
Click for Outreach and Consultation
Click for Publications and Resources
Click for Current Status
Click for Feedback
Click for Site Map
Click for Acronyms and Definitions
Click for GIS Maps

Timeline

Photo of a ship with dates following

Click on the dates in photo for more information.

1990

The Navy began preliminary discussions about developing uniform national standards for military vessel discharges as early as 1990. The EPA, Coast Guard, National Oceanic and Atmospheric Administration and other Federal agencies were involved in these discussions. The Navy, as the military service with the most significant interest and expertise in vessel environmental performance, took the lead for DoD in drafting the national standards proposal.

Return to Timeline

1993-1995

The Navy briefed Congress on the need for national discharge standards and made a strong effort to win State support starting in 1993 by briefing high-level environmental officials of Virginia, Florida, California, and Washington about the national standards initiative.

Federal agency consensus was first achieved in 1993, when the UNDS initiative was incorporated into the Clinton Administration's "Green Book" of Clean Water Act reauthorization issues, a compilation of Administration positions on Clean Water Act reauthorization. In its discussion of innovative technologies, the Green Book recommended amending the Clean Water Act to:

  • Mandate a review of non-sewage discharges incidental to the normal operation of DoD vessels and other vessels designated by the Secretary of Transportation as equivalent to DoD vessels.
  • Determine whether regulation of such discharges through the application of technology is appropriate, and if so, establish and periodically review uniform national standards.
  • Involve the States, Federal agencies and other interested parties in the development of standards, which would be enforceable by Federal (i.e., Coast Guard) and State authorities.
  • Preclude development of vessel discharge standards inconsistent with the national standards upon the effective date of such regulations. Preserve State's rights to establish no-discharge zones, under appropriate circumstances, such as to protect environmentally-sensitive habitats. Despite notable effort, Congress was unable to achieve CWA reauthorization in 1993. However, the Navy continued to discuss the issue with interested parties such as environmental advocacy groups, through 1994 and 1995.

Return to Timeline

1996

On February 10, 1996, President Clinton signed into law the Fiscal Year 1996 National Defense Authorization Act (NDAA). Section 325 of the NDAA amended Section 312 of the Clean Water Act (CWA) to provide the DoD and EPA authority to jointly establish UNDS for incidental liquid discharges from vessels of the Armed Forces. Previously, Section 312 addressed only the regulation of sewage. UNDS extends the principle of marine sanitation devices (MSDs) – devices used to control or process sewage – to a new class of vessel pollution control options, marine pollution control devices (MPCDs). An MPCD is any equipment or management practice designed to treat, retain, or control discharges incidental to the normal operation of an Armed Forces' vessel. The Secretary of Defense and the EPA Administrator are authorized to promulgate standards for discharges requiring control.

Return to Timeline

1998

On August 25, 1998, the DoD and the EPA published the UNDS Phase I proposed rule (63 FR 45297). The proposed rule described 39 discharges incidental to the normal operation of Armed Forces vessels, and proposed requiring controls for 25 of these discharges. It also proposed a mechanism by which States could petition EPA and DoD to review a discharge for control or an MPCD performance standard, and proposed processes to be followed by EPA and States when establishing no-discharge zones.

Return to Timeline

1999

DoD and EPA completed Phase I of the UNDS process by publishing the Phase I final rule on May 10, 1999 (64 FR 25125). The final rule requires control of 25 discharges from Armed Forces vessels, while exempting 14 discharges from control. It also finalized procedures for States to petition EPA and DoD to review controlled and exempted discharges, and establish no-discharge zones.

Return to Timeline

2000 and Beyond

Phase II, currently in progress, will establish performance standards for controlling the 25 discharges determined in Phase I as having the potential to cause an adverse impact on the environment. To facilitate the rulemaking process, the Navy and EPA have agreed to promulgate Phase II standards in batches. The batch rulemaking approach allows the Navy and EPA to conduct technical analyses and develop discharge standards in batches (approximately five discharges per batch) rather than conducting analyses and developing standards for all 25 discharges at one time. The Navy and EPA anticipates Phase II to be complete in five batches. The Phase III rule will establish requirements for the design, installation, and operation of MPCDs to meet Phase II performance standards.

Clear, achievable, and consistent discharge standards will enable DoD to design and build Armed Forces vessels, and train its crews in compliance with known requirements. By establishing specific goals for vessel designs and pollution control technology, UNDS will promote cost-effective development of environmentally-sound ships. Click to go to 1990 Click to go to 1993–1995 Click fo 1996 Click for 1998 Click for 1999 Click for 2000 and Beyond

Return to Timeline