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Safety & Compliance May 2026

Existing Contracts vs. New Contracts: Which Version of EM 385-1-1 Governs Your Work?

Read Time: 9 min

When USACE released the 2024 edition of EM 385-1-1 with a March 15, 2024 effective date, it created a situation that has generated genuine confusion: not every USACE project switched to the new manual on that date. Existing contracts continue to be governed by the 2014 edition unless a contract modification changes that.

The result is a two-track compliance environment that is actively causing problems for contractors managing multiple simultaneous USACE projects. This blog unpacks the distinction, identifies the scenarios that create risk, and offers practical guidance for managing dual-version compliance effectively.

The Core Rule

The governing principle is straightforward: the version of EM 385-1-1 that applies to a contract is the version in effect at the time of contract award.

  • Contracts awarded before March 15, 2024: governed by EM 385-1-1 2014
  • Contracts awarded on or after March 15, 2024: governed by EM 385-1-1 2024

A contractor with four active USACE projects might have some projects under the 2014 manual and others under the 2024 manual simultaneously.

When Does a Modification Trigger the 2024 Edition?

One of the most frequently asked questions: does a contract modification trigger the 2024 manual on an otherwise 2014-governed contract?

The answer depends on the nature of the modification. A routine administrative modification — adding funding, adjusting a schedule milestone — generally does not change the governing safety manual.

However, a contract modification that fundamentally changes the nature of the work may be treated differently by the contracting officer. When in doubt, ask: which edition of EM 385-1-1 governs this modification? Get the answer in writing.

The Dual-Compliance Management Challenge

Managing safety programs across two editions simultaneously is not trivial:

  • The chapter structure is different
  • The citation format is different
  • Required forms are different (ENG Form 6293 is a 2024 requirement)
  • Training requirements are different
  • AHA structure and APP outline requirements differ

The practical solution is clear labeling. Every safety document should clearly state which edition it was developed to satisfy.

Training Implications

Personnel trained under the 2014 curriculum are qualified for 2014 contracts. Personnel trained under the 2024 curriculum satisfy both (since 2024 training covers a superset of what 2014 training addressed).

The simplest approach: accelerate transition to 2024 training for all safety personnel. This ensures everyone is qualified for the most current requirements.

Building a Transition Management System

  • Create a contract version register: a master list of all active USACE contracts with award dates and governing edition
  • Tag all safety documents by edition: every APP, AHA, and supplemental plan should indicate the governing edition
  • Assign edition-aware SSHOs: ensure every SSHO is briefed on which edition governs their specific project
  • Plan for the conversion: consider proactively requesting a contract modification to the 2024 edition for 2014-governed contracts

The two-track compliance environment is a temporary problem. Every 2014-governed USACE contract has a completion date. Eventually, every active USACE project will be under the 2024 manual.

Conduct an Immediate Audit

Audit all active USACE contracts to determine which edition of EM 385-1-1 governs each. Document the results and share with your safety team and project managers.

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