⏰ FDA 483 / Warning Letter response deadlines are typically 15 business days from issue date — initial intake within 24 hours
For Medical Device Firms

FDA 483 / Warning Letter Response — 30-Day Package

Just received an FDA Form 483 observation or Warning Letter? You have 15 business days to respond. I draft the formal response, build the CAPA plan against each cited observation, and stay on retainer through remediation. Fixed price, deadline-driven, senior QA on the byline.

📧 Start the Engagement Read the Methodology
Who It's For

Built for Small / Mid Medical Device Firms in Crisis Mode

If you've just been inspected by FDA and the response deadline is staring at you, this engagement is structured for exactly that situation.

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Just-Inspected Device Firms

Recently received a Form 483 with observations. Need a written response submitted to FDA within the standard 15-business-day window.

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Warning Letter Recipients

Issued a Warning Letter and need a formal response strategy backed by senior QA judgment. Higher-stakes than a 483; same response framework.

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Firms Without In-House Reg. Affairs

10–200 employee device firms whose Quality VP just left, was let go pre-inspection, or never existed. No internal capacity to draft a defensible response.

The 30-Day Engagement

Day-by-Day Timeline

Engagement scoped to land your formal response on or before the 15-business-day FDA deadline, with remediation continuing through day 30 and beyond if retainer is engaged.

1
Days 1–2

Initial Review

Review the 483 / Warning Letter findings within 48 hours of engagement. Identify scope, severity, and any observations that require immediate action (vs. response planning).

2
Days 3–8

CAPA Plan + Draft Response

Build the CAPA (Corrective and Preventive Action) plan covering every cited observation. Draft the formal written response to FDA in standard format, with each observation addressed.

3
Days 9–12

Mock-Audit / Readback

One mock-audit / readback session before submission. Pressure-test the response with someone who's been on the inspector's side of the conversation. Adjust before submission.

4
Days 13–15

Submission

Final response submitted on or before the FDA deadline (15 business days from 483 issue date, or as specified on Warning Letter). Implementation roadmap with deadlines included.

Pricing

Fixed Price. Deadline-Driven. Optional Retainer.

The 30-day response package is the primary engagement. The monthly retainer continues remediation oversight and prepares you for follow-up inspection.

30-Day Response Package

Submitted on or before your FDA deadline.
Fixed-Scope Engagement
Quote provided after initial 483 / WL review · 50% on engagement, 50% on response submission
  • Initial 483 / WL review within 48 hours
  • Formal written response to FDA, drafted to FDA expectations
  • CAPA plan covering each cited observation
  • Implementation roadmap with deadlines
  • One mock-audit / readback session before submission
  • Submission on or before the 15-business-day deadline
  • Senior QA engineer (ISO 13485 / 21 CFR Part 820 lead) on the byline
Start the Engagement →

Remediation Retainer (Optional)

Post-submission, ongoing remediation.
Monthly Retainer
Quote provided after response delivery · cancel anytime after 90 days
  • CAPA closure tracking against the response commitments
  • Monthly remediation status reports for executive readout
  • Pre-followup-inspection prep (mock audits, document review)
  • Available for live questions during follow-up FDA inspection
  • QMS gap remediation — closing the systemic issues underlying the 483
Inquire About Retainer →
Out of Scope

What's NOT Included

Honest scope. If your situation requires one of these, I'll refer you to qualified specialists.

Out of scope for the 30-day response package:

  • Lab testing or analytical work. Where 483 observations require analytical confirmation, I refer to qualified third-party labs and incorporate their results into the response.
  • Recall execution. If a recall is required as part of remediation, that's a separate engagement (or referral to specialized recall firms).
  • Litigation defense. If the 483 / Warning Letter triggers civil or criminal exposure, work alongside specialized FDA enforcement counsel — I do not provide legal opinion.
  • 510(k) or PMA submissions. Premarket submission work is separately scoped.
  • Consent decree negotiations. If FDA escalates beyond Warning Letter to consent decree, retain specialized FDA enforcement counsel for the negotiation; I support the QA-engineering side of the response.
Who Drafts the Response

Senior QA on the Byline. No Junior Drafter.

One person owns the response from intake to submission. The signature on the document is the engineer who wrote it.

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Mark Mayeux
Quality Engineer · QESaaS

Twenty-plus years in product quality engineering across medical devices, aerospace, and consumer goods. Director of Quality at Anatomy Supply Partners (2012–2015) — US/China medical device sourcing company. Built the in-house Device Specification / FDA Regulatory team from scratch, ran 21 CFR Part 820 design control across US engineering and China manufacturing, and built a 21 CFR Part 11 compliant SharePoint Stage Gate system covering DHF / DMR / DHR records.

Director of Quality at Scotsman Ice Systems (Ali Group subsidiary, 2016–2017) — passed major ISO 9001:2015 certification audit, multiple UL and FDA audits, plus customer-led audits from McDonald's, GE, and Viking. Earlier in career: built the entire quality department at a medical equipment startup from scratch, including all agency documentation and supplier quality requirements; the company was later acquired by a larger company.

21 CFR Part 820 21 CFR Part 11 ISO 13485 ISO 9001 / 14001 cGMP Design Controls (DHF / DMR / DHR) CAPA & Risk Management Med Equipment Startup → Acquisition
Common Questions

Before You Engage

How fast can you start?

Initial intake within 24 hours of inquiry. The 30-day timeline begins on engagement start date — typically same-day or next-day after first call. If your 15-business-day deadline is already underway, we adjust the timeline to fit what's left.

What if my response deadline is less than 15 business days away?

Compressed-timeline engagements are accommodated. Rate may adjust for expedited turnaround. If the deadline is less than 5 business days away, I'll tell you on the first call whether a quality response is achievable in the remaining time.

Will FDA accept a response drafted by an outside engineer?

Yes. FDA cares about the substance and credibility of the response, not who drafted it. The response is submitted on your firm's letterhead, signed by your responsible person. My role is engineering judgment and document drafting — your firm owns the submission.

Can you sign an NDA?

Yes. A mutual NDA can be executed before any 483 / Warning Letter content is shared. Standard one-page template available; custom NDAs accommodated.

What if FDA escalates to a follow-up inspection?

If the optional $3,000/month retainer is engaged, I provide pre-inspection mock audits and am available by phone during the follow-up inspection. If the retainer is not engaged, follow-up inspection support is scoped separately.

What if my situation is more complex than a standard 483 response?

If the Warning Letter or 483 involves consent decree exposure, parallel litigation, recall execution, or 510(k) issues, I'll tell you on the first call which parts of the response I can own and which require specialized counsel. The 30-day package is for standard 483 / Warning Letter responses; complex situations are scoped separately.

Start the Response

If your 15-business-day deadline is running, every day matters. Email for fastest intake — response within 24 hours, engagement start same- or next-day. Calendar booking available for non-urgent intake.

📧 mark@qesaas.com — Urgent 📅 Book Non-Urgent Intake