Federal and infrastructure owners often grade schedules against the GAO Schedule Assessment Guide. Here are its four characteristics and ten best practices, plus the three things GAO checks that DCMA skips.
Almost every owner now judges your schedule by the same fourteen tests. The complete map — what each check measures, its threshold, and what a failure is really telling you — with deep dives on the two that trip schedulers up most.
A negative lag isn't a head start — it's a lie about how the work actually happens. The four reasons schedulers give for leads (and why three are wrong), how to find every one in P6, and a five-step fix sequence to pass Check #2 with honest logic.
Negative float is the most common DCMA finding I see, and it's almost always one of five things. Here's how to trace it to its real source, fix it in order, and never get blindsided by it again — without editing the schedule until the red goes away.