The DC4 form is used to present a subcontractor and have its payment conditions accepted within the framework provided by the public procurement. It can be submitted with the bid or during execution, which changes the documentary context. A company must avoid three confusions: declaring a simple supplier as a subcontractor, presenting several subcontractors in a single form, or describing a service different from that quoted. The official notice is the working reference; an old template saved on a workstation must not be used without verification.
French framework for international readers
This is the official French form used for declaring a subcontractor in public procurement. It is a document name, not an abbreviation that should be translated into a generic subcontracting form. The French Legal Affairs Directorate, known as DAJ, publishes the form and related material. Overseas parent companies can use an English working summary, but the live version, notice and buyer instructions remain authoritative. Every amount, service scope, payment route and signature should be reconciled with the tender or contract stage before the French document is approved.
Scenario: DC4 and subcontracting
A holder plans to entrust a specific part of a service to a specialized company. The project manager describes the scope in the brief, management control finds the same amount in the costing and the lawyer checks the qualification of the relationship. The team downloads the current DC4, enters the exact identifiers and attaches the requested elements. When the subcontractor is finally replaced before filing, the old form is canceled and kept outside the active file; no data is simply overwritten in the final file.
Read the visual “DC4 cross control”
The visual grid uses the review labels “common form”, “parts”, “service”, “amount”, “signatures” and “acceptance”. Read the cards from left to right and then from top to bottom; no arrow connects them. They organise the topic’s checkpoints without depicting a decision tree or an automatic chronology, and their meaning does not depend on colour.
Official reference for DC4
The Legal Affairs Department makes the DC4 form and its notice available among the candidate declaration forms. The documentation explains its purpose, the time of transmission and the information expected to present a subcontractor. The forms page allows you to find the published versions. The model facilitates the declaration but does not replace the analysis of the contract, the real status of the service or the specific requirements included in the consultation documents.
Alerts specific to payment and form
- reuse an old form
- bring together several subcontractors
- declare a supplier without analyzing the relationship
- modify the amount without updating the linked documents
Limits of interpretation for DC4
DC4 does not alone prove that the relationship is legally a subcontractor or that the buyer will accept the subcontractor. An unvalidated estimate should not be presented as a guaranteed amount. The terms of signature and payment depend on the stadium and the applicable framework; they must be read in the instructions and the consultation. Finally, an accepted declaration does not exempt from following the obligations during execution.
Instructions for using the “DC4 consistency check” tool
He compares the form with the brief, the costing and the subcontracting contract. The entries are: DC4 version, SIRET of the parties, service, amount, stage of presentation, validation. The expected output is a list of matches and discrepancies to be resolved. The safeguards are explicit: no automatic legal qualification; one document per subcontractor; no value copied without source. When an input is unknown, the tool flags the missing evidence instead of choosing the most favourable outcome.
Control grid “DC4 cross control”
- official version of the form identified
- a subcontractor by DC4
- exact identifiers of the parties
- scope of work consistent with the technical proposal
- amounts consistent with the costing
- validation and decision of the buyer archived
Working method: DC4 consistency check
1. Qualify the relationship: describe the part of the service entrusted and verify that it is indeed subcontracting in the context of the market. To validate this step, note “official version of the form identified”. The risk to avoid is: reusing an old form.
2. Download the form and instructions from the official page when preparing the file. Save the version and recovery date. To validate this step, note “one subcontractor per DC4”. The risk to avoid is: bringing together several subcontractors.
3. Identify exactly the holder or tenderer and the subcontractor. A separate DC4 must be prepared for each relevant subcontractor. To validate this step, note “exact party identifiers”. The risk to avoid is: declaring a supplier without analyzing the relationship.
4. Align the nature of the services, the amounts and the payment conditions with the offer, the subcontracting contract and the other annexes. To validate this step, note “scope of work consistent with the technical proposal”. The risk to avoid is: modifying the amount without updating the linked documents.
5. Check the declarations, capacities and any data relating to data protection requested by the applicable version, without copying an old file. To validate this step, note “amounts consistent with the costing”. The risk to avoid is: reusing an old form.
6. Determine the necessary signatures and validations depending on the time of presentation, then keep the version transmitted and the buyer's decision. To validate this step, note “validation and buyer’s decision archived”. The risk to avoid is: bringing together several subcontractors.
Decision and operational handoff
Transmit the DC4 when the qualification of the relationship, the scope, the amounts and the validations match. If a contractual element remains uncertain, request a competent review before completing the form. During execution, relate any developments to the accepted version and the planned process; do not treat the initial document as a blanket authorization for subsequent changes.
Official sources checked for DC4
Sources and method
- Official source 1 — checked on 2026-08-17.
- Official source 2 — checked on 2026-08-17.
Source éditoriale : Propecto. Date de publication : 2026-08-17. Lorsqu'une donnée vient d'une source externe, sa référence est citée dans le corps de l'article.