DOC: what the project manager needs to know about this date to avoid missing the contractual starting point of the works

Note: this entry used to be called the DROC. That name is no longer used — the current reference document is simply the DOC. If older CRs on your project still say “DROC,” treat it as today’s DOC.

At the top of the CR, you read “DOC on 01/09/2025 – amended.” This isn’t just another administrative note: it’s the date from which contractual deadlines start running for every contractor. Changing it without proper formalities exposes you to a cascade of claims.

Type

Phase

Actors

Impact

Stakes

Where

Document

preparation, execution

MOE (project manager), OPC (scheduling coordinator), Client (MO), Contractor

High

contractual

CR header, “Site start-up” section

1. Operational definition + common mistake

DOC stands for Déclaration d’Ouverture de Chantier (Statutory Declaration of Site Opening, also referred to as the Site Opening Declaration depending on context). It is the administrative act by which the client (owner) informs the relevant authorities (town hall, labor inspectorate) that works are starting. It is filed with the town hall as soon as works authorized under a building permit begin. Its date is also the reference starting point for the contractual execution period defined in the contract, often confirmed via a start-up formal instruction (ordre de service).

Many assume the DOC is just a one-off administrative formality — in reality, its date drives the calculation of the contractual deadline, the execution schedule, and the application of delay penalties. If the DOC is “amended” (as in this CR), the entire schedule shifts accordingly, with implications for every trade’s deadline.

2. Where it appears

In a site meeting report — in the header section or the “Site start-up” section, noting the effective date and sometimes “amended” when a corrective DOC has been filed. In the analyzed CR:

“DOC on 01/09/2025 – amended”
“Site shutdown ordered on 27/11/2025. Reason: cessation of payments and site abandonment by LMTS.”
“Restart on 07/04/2026 by CAROLI TP”

3. How to read this entry in the CR

If the DOC is noted as “amended” → check the original date and the amendment date, since the contractual deadline has been recalculated. Every contractor whose deadline is calculated from the DOC must factor in the amended date.

If the DOC is missing from the CR → this is an anomaly. Check that the declaration has actually been filed: without a DOC, contractual deadlines have no enforceable starting point.

If the site was halted and then restarted → distinguish the original DOC (administrative filing) from the start-up or restart formal instruction (contractual instruction). The amended DOC may not coincide with the date of the restart instruction.

4. Who does what

Actor

What DOC means to them

Concrete action

Client (MO)

Administrative obligation on their initiative

File the declaration with the town hall before works actually start; file an amended DOC if the date changes

MOE

Starting point of deadlines to control

Check consistency between the DOC, the start-up instruction, and the schedule; alert the client if the date isn’t current

Contractor

Starting date of their own execution deadline

Check the DOC and compare it with their contractual schedule as soon as the contract is signed

5. What this changes in practice

A project manager who correctly tracks the DOC date (and its amendments) can realign the master schedule and preserve deadline consistency for every trade. A project manager who doesn’t track DOC amendments risks a mismatch between the theoretical contractual deadline and actual progress, opening the door to claims from contractors disputing their delay.

Failure scenario: the site halts after a contractor abandons the works. The original DOC is not amended. At restart, the MOE calculates the new contractor’s deadlines from the original DOC. The contractor claims an extension citing lost time, but neither the DOC nor the schedule has been formally realigned: the dispute over the starting point of the deadlines cannot be settled simply.

6. Example of real wording

“DOC on 01/09/2025 – amended”

“Restart on 07/04/2026 by CAROLI TP”

7. Points of caution

  • The DOC is not a start-up formal instruction: the DOC is an administrative (planning-law) declaration; the start-up instruction is a contractual one.

  • The DOC doesn’t automatically set the starting date for all deadlines: check the contract documents, since some deadlines run from the notified start-up instruction instead.

  • An “amended” DOC is not just an internal note: it’s an administrative act that must be filed with the town hall.

  • Don’t confuse the DOC with the DAACT (Declaration Certifying Completion and Compliance of Works) — the former opens the site, the latter administratively closes it.

  • In the event of a prolonged site shutdown, a new DOC may be required for the restart: check with the relevant town hall’s planning department.

8. Not to be confused with

Related term

Key difference

DAACT

Declaration of completion and compliance — closes the site on the planning-law side

Start-up formal instruction

Contractual instruction setting the deadline start date under the contract

Building permit

Prior authorization — the DOC is its effective implementation

Contract effective date

Overall contractual starting point — may differ from the DOC

9. Related terms

Same phase (preparation / start-up): Start-up formal instruction · DAACT · Building permit · Works schedule · Phasing

Same actor (MOE/MO): Site shutdown (arrêt de chantier) · Defaulting company (entreprise défaillante) · Delay penalties

<-

BACK TO FULL GLOSSARY