DLP Rectification Tracker

The Defects Liability Period (DLP) — also called Defects Notification Period (DNP) in FIDIC 2017 — is the period after substantial completion during which the contractor remains liable for defects in materials + workmanship. Typically 12 to 24 months on Indian projects (longer for highways: 5-10 years for major structures, up to 20 years for asphalt pavements).

The DLP is when all the corners cut during construction surface. Hidden defects emerge: - Waterproofing failures (first monsoon) - Plumbing leaks (continuous-use buildings) - Electrical system failures (DG sets, UPS, lighting) - HVAC under-performance (first summer / winter) - Paint peeling, plaster cracking - Joinery warping - Lift breakdowns - Glass / facade leaks

The DLP Rectification Tracker is the formal logbook that captures every defect notified, contractor's response, rectification work, verification, and sign-off. It is the lynchpin document for retention release: - 50% of retention released at substantial completion (subject to defect-list snagging) - 50% released at DLP expiry + Final Completion Certificate (FCC) - Without rectification tracker, retention release contested; contractor's money locked for months / years

Governed by FIDIC Sub-clauses 11.1 to 11.11 (Defects Liability) + project-specific contract DLP clauses + Indian Contract Act 1872 Section 73 (compensation for breach).

Standard DLP timeline (12-month DLP example):

T-0 — Substantial Completion: - Substantial Completion Certificate (SCC) issued - 50% retention released to contractor - Defects list (snag list) attached to SCC — typically 50-200 minor defects - DLP starts (12 months from SCC) - Building handed over to owner / FM team

T+1 to T+6 months — Initial defects emergence: - Building under daily use; defects surface - Owner / FM team reports defects to PMC / Engineer - Engineer notifies contractor (FIDIC Sub-clause 11.1) - Contractor inspects within agreed time (typically 7-14 days) - Root cause analysis: material / workmanship / design / misuse - Contractor's liability assessment - For genuine defects (material / workmanship): contractor rectifies free of cost - For misuse / vandalism / wear-tear: outside DLP scope; owner pays - For design defects: designer's liability (separate from contractor) - Rectification plan + schedule - Approved by Engineer - Work executed - Verification + sign-off

T+6 to T+12 months — Continued defects: - Seasonal defects (monsoon waterproofing, summer HVAC) - Stress-test defects (high-occupancy buildings, lift breakdowns) - DLP inspections — monthly / quarterly - Punch-list management

T+12 months — DLP expiry: - Final DLP inspection - All defects to be closed - Outstanding defects: contractor's last chance OR alternative recovery from retention - Final Completion Certificate (FCC) issued - Remaining 50% retention released - BG (Bank Guarantee) released - Final account settlement

T+12 to T+18 months — Latent defects period: - DLP closed but latent defects (hidden defects not discoverable in DLP) covered under contract law - Indian Contract Act + Latent Defects clauses (typically 3 years for civil; 5+ years for structural) - Contractor's residual liability under tort + contract

Per-defect entry: - Defect number + date reported - Reporter (FM / owner's rep / PMC during inspection) - Location + description + photos - Affected system (civil / MEP / HVAC / facade / etc.) - Severity (Critical = stops use; Major = inconvenience; Minor = aesthetic) - Contractor's site visit date + by whom - Root cause + liability decision - Rectification method approved - Work plan + dates - Resources deployed - Completion date + photos - Verification by inspector - User acceptance - Sign-off + closure

1. Contractor disappears post-handover — moves to next project; DLP defects ignored; owner forced to engage another agency + recover from retention.

2. Slow response — defect notified; contractor takes 30+ days for site visit; rectification delayed; user frustration.

3. Root cause disputed — owner says material defect; contractor says misuse; no joint inspection; dispute escalates.

4. Patch repair instead of root cause fix — defect re-occurs in 6 months; same defect entered again; never closed.

5. No verification post-rectification — contractor says "done", invoice claims for retention release; PMC didn't verify; defect later re-emerges.

6. Multiple defects, scattered records — separate emails / WhatsApp / paper notes; no central register; DLP closure mess.

7. DLP expiry approaches, defects unclosed — last-minute rush; quality of rectification poor; latent defects in repairs themselves.

8. Final Completion Certificate refused — owner withholds FCC due to outstanding defects; contractor's retention locked for years.

9. Disputed scope of DLP — "this was scope variation, not defect" — disagreement; no joint inspection at handover; ambiguity.

10. MEP DLP separate from civil — different sub-contractors; coordination failure; owner caught in middle.

11. No retention deduction for unclosed defects — contract requires retention release on completion of rectification; if not completed, retention adjusted; owner doesn't enforce.

12. Owner's misuse during DLP — owner uses lift for goods + tools; lift breaks; contractor refuses liability; legitimate.

13. No FM training at handover — operators don't know how to use equipment; failure attributed to defect when actually mis-operation.

14. Latent defects emerging post-DLP — major waterproofing failure 14 months post-DLP; contractor escapes; owner stuck.

15. No BG / insurance coverage post-DLP — Bank Guarantee released at SCC; retention released at FCC; latent defects period has no contractor security.

Companion PMC formats: - Snag List Register (PMC-HND-LOG-002) — handover snags - Substantial Completion Certificate Process — SCC issuance - Final Completion Certificate Process — FCC + retention release - Operations + Maintenance Manual Handover - As-Built Drawings Register - Warranty Tracker — for goods + sub-systems - Retention + BG Register (PMC-BIL-LOG-005) - Dispute Register (PMC-RSK-REG-005) — for disputed defects

Standards + contracts: - FIDIC Red / Yellow / Silver Book 1999 + 2017 — Sub-clauses 11.1 to 11.11 (Defects Liability) - FIDIC Gold Book 2008 — Design Build Operate — different defects regime - Indian Contract Act 1872 Section 73 — Compensation for loss - Sale of Goods Act 1930 Section 16 — Implied warranties - Consumer Protection Act 2019 — for projects involving end consumers (residential) - RERA Act 2016 Section 14 — for real-estate; 5-year structural defects liability - CPWD Works Manual 2019 — DLP procedures (typically 24 months) - NHAI Concession Agreement — typically 5-10 years for major works - ISO 9001:2015 Clause 8.6 — Release of products + services