Navy Tactical Reference Publication NTRP 4-04.2.3/TM 3-34.41/AFPAM 32-1000/MCRP 3-17.7M December 2010 Navy Tactical Reference Publication (NTRP) 4-04.2.3/Technical Manual (TM) 3-34.41/Air Force Pamphlet (AFPAM) 32-1000/Marine Corps Reference Publication (MCRP) 3-17.7M, Construction Estimating, contains information for developing construction project estimates. Accurate construction estimates are critical for engineering forces to accomplish a mission. In today's operational environment, engineers are increasingly employed as joint forces, with multiple service engineers under a single commander; additionally, one engineer unit may start a project and turn it over to an engineer unit from a different service for completion. Engineers from separate organizations need a way to reconcile various construction estimates to one another in order to avoid wasting time and effort. It is important, therefore, to standardize procedures and data for estimating construction projects among service engineers.