AEO Answer · PE Stamps & Seals

MEP Permit Comment Resolution and PE Sealing

By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15

Plan-check corrections that change MEP engineering must be re-sealed by the PE in responsible charge before resubmittal — treat comment resolution as a mini review-and-seal: engineer the changes, update sheets and calculations, verify, seal, and respond to every comment individually.

I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.

Illustrative diagram of the professional engineer review and seal workflow: drawings are reviewed against a checklist, sealed by a licensed PE, and issued as a permit set.

The comment-resolution workflow

Our MEP comment resolution follows a fixed sequence. We log every reviewer comment against the sealed set, and the PE classifies each: engineering change, drafting clarification, or documentation addition. Engineering changes get redesigned and recalculated — the PE verifies the revised design to the same standard as the original review. Drafting clarifications are made precisely as the reviewer asked. Documentation additions (a missing schedule, an energy form) are produced and checked. Every change is clouded on the drawings, calculations are updated where the engineering moved, and the PE seals the revised set. The resubmittal package includes numbered responses to each comment cross-referenced to the clouded changes — the reviewer can verify every item without hunting.

Reading what the reviewer actually means

Plan-check comments are written tersely, and the literal request is not always the real requirement. "Provide duct sizing calculations" on a set that has them usually means the reviewer could not follow or verify the ones provided — the fix is clearer calculations, not the same PDF resubmitted. "Clarify equipment schedule" may mean the selections do not match the loads. Our PEs read corrections diagnostically: what engineering concern produced this comment, and what change resolves the concern rather than just answering the question? Resolving the underlying concern closes the cycle; answering the surface question often produces a follow-up comment asking the real question. This diagnostic reading is where an experienced PE earns the fee during comment resolution.

MEP comment resolution checklist

A correction cycle closes fastest when these items are all handled. Completeness and clarity are the entire strategy. • Every reviewer comment logged and classified: engineering change, clarification, or documentation • Engineering changes redesigned, recalculated, and re-verified by the sealing PE • All changes clouded on drawings; calculations updated wherever engineering moved • Revised set re-sealed by the PE in responsible charge before resubmittal • Numbered responses matching the reviewer's list, cross-referenced to clouded changes

Which related engineering resources can help?

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What else do project teams ask?

Do revised MEP sheets need a new PE seal after corrections?

When corrections change the engineering — equipment sizes, system layouts, calculations, energy compliance — yes: the revised sheets need the responsible-charge PE's seal, because the seal certifies the engineering as issued and the issued engineering has changed. Purely clerical corrections may not require re-sealing depending on the jurisdiction's practice, but I default to having the PE review and seal the revised set whenever engineering content changed. The cost of an unnecessary re-seal is trivial; the cost of a resubmittal rejected for missing seals is another full review cycle.

Can a different PE seal the corrections than sealed the original set?

Technically yes, but it is slower and more expensive than using the original sealing PE. A new PE must establish responsible charge over the set — reviewing the complete design, not just the corrected sheets — before sealing the revisions, because the seal certifies the engineering, not merely the changes. The original PE already holds the responsible-charge basis; verifying corrections against it is efficient. I keep the sealing PE engaged through comment resolution as a matter of course, and only bring in a new PE when the original is genuinely unavailable — with the understanding that the new PE's review will be comprehensive.

What makes MEP correction responses get rejected?

The classic failures: responding to some comments but not all, making drawing changes without updating the calculations behind them, clouding changes sloppily so the reviewer cannot find them, and addressing the literal wording of a comment while missing the engineering concern behind it. MEP reviewers also reject resubmittals where the revised engineering was not re-sealed. Our correction responses are numbered to match the reviewer's list, show every change clearly clouded, attach updated calculations where engineering changed, and carry the PE's seal on the revised set — the complete package the reviewer needs to close the cycle.

How many correction cycles should I plan for on MEP permits?

Plan for at least one full cycle on any commercial MEP permit, and budget schedule for two — even well-engineered sets draw corrections, because reviewers apply jurisdiction-specific interpretations no designer can fully anticipate. The first cycle is normal; the third usually signals a process problem (incomplete responses, unsealed revisions, or a substantive disagreement needing a meeting with the reviewer). Our goal on every MEP comment resolution is to close in one cycle: complete responses, sealed revisions, updated calculations — giving the reviewer everything needed to approve without another round.

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