Title 5 Inspector Attestation Under 310 CMR 15.302(2): The Five BOH Rejections to Avoid

By The Complos Team. Last reviewed 2026-05-14.

TL;DR. NEIWPCC SI inspectors guide to the Title 5 inspection report attestation block under 310 CMR 15.302(2). Cert number format, expiration timing, signature handling, and the five rejection patterns BOHs use most.

A clean Title 5 inspection with a botched attestation block is a rejected report. I have watched a Falmouth BOH agent send back a Title 5 inspection report with a fully documented effluent breakout failure because the inspector's NEIWPCC SI cert number was formatted with a hyphen the BOH's database would not accept. The seller lost ten days of the closing window over punctuation.

310 CMR 15.302(2) is one of the shorter passages in Title 5, but it does heavy lifting. It requires the inspector to certify, in writing, that the inspection was performed in accordance with the rule, and it identifies the inspector by NEIWPCC SI certification number. The attestation block on Title 5 inspection report is where this lands. Five rejection patterns drive the bulk of attestation kickbacks. Understanding each one, in order, is the difference between a clean filing and a chase.

Part of the MA Title 5 Inspection Complete Guide guide.

Rejection 1: Cert Number Missing, Truncated, or in the Wrong Format

NEIWPCC SI certification numbers follow a standardized format issued by the New England Interstate Water Pollution Control Commission. MA-issued SI numbers typically run as a multi-digit numeric string, sometimes with a state prefix (MA-XXXX) and sometimes as a bare number depending on the era of certification.

The trap: BOH databases vary on what they accept. Some accept the bare number, some require the MA- prefix, some reject hyphens, some require leading zeros to be preserved. A cert number entered as "MA-1234" that the database expects as "MA1234" will route to manual review or outright rejection.

Mitigation. Confirm the format the BOH expects before filing. The BOH submission lookup tracks per-town filing preferences including cert-number format. When in doubt, file with the format printed on your physical NEIWPCC certificate; if the BOH wants a different format, they will tell you on first rejection and you adjust subsequent filings.

Rejection 2: Certification Expired on the Date of Inspection

The cert expiration date controls the date of inspection, not the date of report filing. An inspection performed on March 15 with a certification that expired on March 10 cannot be filed. The five days you spent thinking the cert was still good produced an inspection that the BOH cannot accept.

NEIWPCC SI certifications run on a multi-year cycle (typically three years from initial issuance and renewal, with continuing-education hours required at renewal). The renewal window is firm; there is no automatic grace period for an expired cert.

Mitigation. Track your renewal date 90 days out. The cert renewal countdown flags upcoming renewals; that's the tool category that exists for exactly this. If a renewal lands close to a scheduled inspection, push the inspection date until after renewal is confirmed.

What if you discover mid-report that your cert was expired on the inspection date? Two options: re-perform the inspection with a current cert (preferred, even if it costs you the original site visit), or partner with a currently-certified SI to re-perform and co-attest. Filing an expired-cert attestation is not a viable path; the BOH will reject and the inspection will need to be redone anyway.

Rejection 3: Signature Mismatch — Wet Ink Versus Scan

MA BOHs split on signature requirements. Most accept a digital signature scan embedded in the PDF; a meaningful minority — particularly some Cape Cod and Western MA towns — still require wet-ink signatures with a paper submission of the Title 5 inspection report or the attestation page.

The signature scan failure mode I see most often is a signature image that is below the BOH's resolution threshold (a 72-dpi screenshot of a signature looks pixelated and triggers questions about authenticity). Use a scan or a digital signature image at 300 dpi minimum.

Mitigation. Confirm with the BOH before signing. If the town requires wet ink, sign the Title 5 inspection report in pen, scan the signed page at 300 dpi, attach the scan to the digital filing if the BOH accepts a hybrid path, or submit paper plus PDF if they require both. Document the BOH's stated preference in your inspection file in case of later dispute.

Rejection 4: Attestation Language Modified

310 CMR 15.302(2) requires specific certification language. The exact words matter. Paraphrasing the attestation, shortening it, or adapting it to a different format triggers rejection because the BOH cannot determine whether the inspector has actually attested to the rule's requirements.

Common modifications I see that cause kickback:

• Dropping the cite to 310 CMR 15.302 from the attestation paragraph
• Replacing "I hereby certify" with "I certify" or "I confirm"
• Removing the line that ties the attestation to the inspector's NEIWPCC SI status
• Adding a disclaimer or qualification that limits the scope of the attestation

Mitigation. Use the canonical attestation language as it appears on the official MassDEP Title 5 inspection report. Do not retype it; do not "clean up" the wording. If you are using a third-party report builder, confirm the builder reproduces the attestation language exactly. Complos's Title 5 inspection report builder uses the canonical text from the live MassDEP fillable form and version-pins to the latest MassDEP revision.

Rejection 5: Attestation Date Later Than 30 Days from Inspection

15.302(2) requires the report to be submitted to the system owner and to the local approving authority within 30 days of the inspection date. The attestation is the formal certification that closes the inspection record; if the attestation is dated more than 30 days after the inspection date, the BOH can interpret that as the inspector having missed the filing window.

Mitigation. Sign and date the attestation as soon as the report is finalized — typically within 5 to 10 business days of the inspection. Do not hold the attestation back while waiting on a homeowner's payment, a co-signing engineer, or a follow-up site visit unless the follow-up is part of the inspection itself. If the follow-up extends the inspection past 30 days, document the extension as a continuation of the inspection in the narrative; the attestation date can then reflect the completed inspection.

What an Attestation Block Should Contain

The defensible attestation block has these elements, in this order:

1. The certification statement, in canonical 15.302(2) language
2. The inspector's printed name
3. The inspector's NEIWPCC SI certification number, in the format the BOH database expects
4. The cert expiration date (verifies the cert was active on the inspection date)
5. The date of the attestation
6. The signature (digital or wet ink, per BOH)

If any of those six is missing, the report is incomplete. Most BOHs will return an incomplete report rather than rejecting outright on first pass, but a returned report is still a delay — typically 7 to 14 days of round-trip, which can blow up a real-estate closing timeline.

Frequently asked questions

What's the short answer to "Title 5 Inspector Attestation Under 310 CMR 15.302(2): The Five BOH Rejections to Avoid"?

NEIWPCC SI inspectors guide to the Title 5 inspection report attestation block under 310 CMR 15.302(2). Cert number format, expiration timing, signature handling, and the five rejection patterns BOHs use most.

Who does this apply to?

NEIWPCC-certified Title 5 system inspectors in Massachusetts, FDEP-licensed septic contractors in Florida, SCDHS-permitted designers in Suffolk County NY, and the property owners these professionals serve.

Where can I read the underlying regulation?

Every Complos guide links to the source statute or rule in the body. MA Title 5: 310 CMR 15.000. FL HB 1379 / HB 1417. NY: Suffolk County Sanitary Code Article 19. Always confirm with mass.gov / flsenate.gov / suffolkcountyny.gov before acting.

How does Complos help with this?

Complos generates the regulator's exact PDF, validates the inspection against the local overlay, and tracks per-town submission methods so you don't ship the report into a black hole. Start a 14-day trial at complos.ai/signup.

How Complos helps

Complos validates the attestation block on every Title 5 inspection report draft against the canonical 15.302(2) language and confirms the cert number format matches the destination BOH's preference before the report is filed, so the five common rejections are caught at draft time. Run the MA Title 5 compliance checker against your draft to validate attestation formatting.

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