A realistic GLP timeline
For a lab starting from a reasonable quality baseline: 9–12 months to inspection-ready. Starting from scratch: 12–18 months. One documented implementation ran 3 years.
- Months 0–1 — Baseline
Independent gap assessment and prioritized remediation plan. Deliverable: findings report with effort estimates. - Months 1–4 — Build the system
SOP writing and approval, QA unit stood up or strengthened, training program, equipment qualification schedule, archive setup. - Months 3–6 — Validate the system
Run pilot studies under the new SOPs, internal QA audits, fix findings, train on deviations and CAPA. - Months 5–8 — Dry run
Independent audit or mock inspection. This is where the real inspection would hurt — find it here instead. - Months 6–12 — Demonstrate operation
Operate the program: studies with QA audits, management review, continued training. Some authorities want to see an operating history. - Month 9+ — Inspection
National GLP monitoring authority inspection. Findings closed with CAPA; recognition follows.
Timeline questions
Can a consultant compress this timeline?
Somewhat. Consultants accelerate the build phase with proven SOP templates and experienced auditors, but they can't compress the demonstrated-operation period — authorities want to see the system actually running. The documented implementation case ran 3 years; 9–12 months is realistic for a lab that starts partway there.
What slows GLP programs down most?
SOP rewrites that never get approved, QA units without real independence, and equipment qualification backlogs. Fixing these late costs more than fixing them at the gap-assessment stage.
Do I need to pause studies during the build?
Non-GLP work can continue; just don't claim GLP compliance for studies run before the program was operational. Studies started mid-build need a clear statement of which GLP elements applied.
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