Roles & authorities
MEP engineer
The MEP engineer designs a building's mechanical, electrical and plumbing systems (often the fire protection design as well) and stays responsible for that design through construction. On many projects one firm covers all three disciplines; on others each has its own engineer of record. They size the systems, set the performance the design has to meet, and review the field questions and substitutions that affect how those systems get built. Their authority runs to the MEP scope and comes from the design contract and state license laws.
Run it with the Photo Gate
HVAC inspection checklist
14 items · 24 photos required
Why it matters
MEP work is dense, hidden, and tightly coordinated, with ducts, pipe, conduit and equipment all fighting for the same space above a ceiling. When the field can't build a route as drawn, the MEP engineer is who reviews the alternative so the system still performs and still meets code.
Substitutions are a constant. An equal piece of equipment, a different fitting, a re-sized run: the MEP engineer reviews whether it actually meets the design intent before it goes in, which is what keeps a system from passing inspection but underperforming.
What proves it
Rough-in inspected and photographed before cover, tied to the approved drawings and any stamped revisions, is what lets a later question about a hidden run be answered from the record instead of by opening a wall. Commissioning and functional testing later confirm the installed system performs the way the MEP design intended.
Standards it's verified against
Checklists that put mep engineer to work
Free, field-ready checklists, each with the photo every item needs before it can be submitted.
Related terms
- Engineer of record (EOR)The licensed engineer who stamps a design discipline and stays responsible for its intent through construction.
- Architect of recordThe licensed architect whose seal is on the construction documents and who carries responsibility for the design through the build.
- Testing and inspection agencyAn independent firm retained to test materials and inspect specific work, often to carry out a special inspection program.
- Authority having jurisdiction (AHJ)The office or official empowered to enforce a code and approve materials, methods and completed work on a given project.
- Geotechnical engineerThe engineer who evaluates soil and subsurface conditions and sets the requirements for foundations, earthwork and site preparation.
- Inspector of record (IOR)A project inspector assigned to continuously observe construction on certain projects, reporting to the building official and the design professionals.
Knowing the term is step one. Proving it is the job.
RTI holds the submit button until every mandatory item is answered and the photos are attached, then chains the record so it can be proven untouched later.
30-day trial · No card required