Electronic Signature for Territorial Collectivities in France: Legal Framework and Best Practices

Why Electronic Signature Has Become Essential for Territorial Collectivities

The digitization of administrative procedures is now a priority for municipalities, departments, regions, and local public institutions. Since the entry into force of Order No. 2014-1329 of November 6, 2014 relating to remote deliberations of deliberative bodies of territorial collectivities, and even more so with the Action Publique 2022 program led by the government, electronic signature for territorial collectivities has established itself as a strategic lever for modernization. By 2026, nearly 87% of French regions have deployed at least one digital signature solution according to SGMAP data, and the movement is now extending to municipalities with fewer than 3,500 inhabitants.

The generalization of contract digitization within collectivities — public contracts, partnership agreements, deliberations, administrative orders — responds to a triple logic: operational efficiency, legal security, and citizen demands for transparency. This article guides you through the regulatory foundations, applicable signature levels, concrete use cases, and best practices to adopt for a successful digital transition.

A Regulatory Context in Full Consolidation

The European directive on public procurement (2014/24/EU), transposed into French law by Decree No. 2016-360, requires complete digitization of public procurement procedures above €40,000 HT since October 1, 2018. In parallel, the eIDAS Regulation No. 910/2014 established a harmonized framework for mutual recognition of electronic signatures across all Member States, a foundation that the eIDAS 2.0 revision (EU Regulation 2024/1183, which came into force in May 2024) further strengthens with the introduction of the European digital identity wallet (EUDIW).

For territorial collectivities, this concretely means that any act committing the legal entity — municipal order, public contract, public service delegation agreement — can and must be able to be signed electronically, provided the right signature level is chosen according to the nature and risk of the act.

The Three Levels of Electronic Signature Applicable to Territorial Collectivities

The eIDAS regulation distinguishes three levels of signature, whose relevance varies depending on the administrative act in question.

Simple Electronic Signature (SES)

Simple electronic signature constitutes the minimum level. It is based on electronic data attached to other data (a click of acceptance, a verified email address) without requiring third-party certification. It is suitable for acts with low legal risk: acknowledgments of receipt, internal notifications, routine administrative forms. For a municipality, it can be used for managing online registrations or confirming administrative appointments.

Caution: Simple signature offers only limited presumption of reliability, and its enforceability in litigation can be challenged. It is therefore unsuitable for contracts involving significant expenditures or acts subject to legality review.

Advanced Electronic Signature (AES)

An advanced signature is uniquely linked to the signatory, allows for their identification, is created from data that the signatory can keep under their exclusive control, and is linked to the signed data in a way that detects any subsequent modification. It is generally based on a digital certificate issued by a qualified trust service provider (QTSP) listed on the French trust list (Trust Service Status List – TSL).

For public contracts below threshold and inter-collectivity partnership agreements, advanced signature represents a good balance between security and operational fluidity. Many modern SaaS solutions, including Certyneo, allow deployment of this level with strong authentication (SMS OTP + documentary verification) without requiring a physical key.

Qualified Electronic Signature (QES)

Qualified signature is the highest level provided for by eIDAS. It is necessarily based on a qualified certificate issued by an accredited QTSP, and is generally created using a qualified signature creation device (QSCD) — smart card, USB token, or, since eIDAS 2.0, qualified remote signature creation service. It benefits from a legal presumption of equivalence to handwritten signature in all Member States (Article 25(2) of the eIDAS Regulation).

This signature is recommended — or even mandatory — for the most sensitive acts: delegations of mayoral signature or president of departmental council, large-scale public contracts, acts subject to prefectural legality review. The cost and complexity of implementation are higher, but the absolute legal security it provides makes it the indispensable standard for collectivities managing a large volume of high-stakes contracts.

For a comparative view of solutions available on the market, Certyneo's comparison of electronic signature solutions will allow you to quickly evaluate offerings according to your budget and technical constraints.

Digitization of Contracts: Which Acts Are Affected in Practice?

Contract digitization in municipalities and town halls covers a very broad spectrum of administrative acts. Understanding which are priorities allows for a gradual and controlled rollout.

Public Contracts and Framework Agreements

Since the Order of March 22, 2019 establishing the terms for providing consultation documents and communication between buyers and economic operators, electronic signature is mandatory for formalized contracts (thresholds > €215,000 HT for supplies and services). The AAPC (Public Calls for Competition Notice), CCAP, CCTP, and statements of participation must be signed by the legal representative of the collectivity and by the contract winner.

The buyer profile (public contracts digitization platform) must be interoperable with signature tools. An API integration with a solution like Certyneo allows you to automate document sending, signature collection, and archiving with probative value in a digital safe compliant with NF Z 42-013.

Agreements and Deliberations

Public service delegation agreements (DSP), agreements for occupation of public domain, partnership agreements with associations or other legal entities, as well as municipal council or deliberative assembly resolutions can all be digitized. For the latter, Decree No. 2020-1407 of November 18, 2020 relaxed the conditions for resorting to remote meetings, opening the door to electronic signature of minutes.

Civil Status Acts and Administrative Orders

Danger orders, administrative police orders, urban planning acts (building permits, preliminary declarations) can also be signed electronically. The Directorate for Legal and Administrative Information (DILA) developed the @ctes portal for dematerialized transmission of acts subject to legality review to the prefecture, with integration of the mayor's or president's electronic signature.

If your collectivity is also rolling out electronic signature in its HR processes — recruitment, contract amendments, training — the guide dedicated to electronic signature for HR will provide you with a precise reference framework.

Choosing and Deploying a Digital Signature Solution Adapted to Public Constraints

Territorial collectivities face specific constraints that generalist market solutions do not always integrate: data hosting on national or European territory, compatibility with existing information systems (Berger-Levrault, Sedit Marianne, Civil Net...), authorization management through delegation, and traceability requirements for legal archiving.

Solution Selection Criteria for Compliance

Several criteria should guide the choice:

• Provider Qualification: the provider must appear on the national trust list (French TSL published by ANSSI) or on the consolidated European list (EU Trusted Lists). eIDAS qualification is a non-negotiable minimum guarantee.
• Sovereign Hosting: data processed by collectivities often involve state secrets or personal data within the meaning of GDPR. Hosting certified HDS (Health Data Hosting) or qualified SecNumCloud is strongly recommended for the most sensitive processing.
• Interoperability: the solution must integrate via REST API with citizen relationship management systems (GRU), business software, and public procurement platforms (AWS, Klekoon, e-Marchés publics...).
• Archiving with Probative Value: the signed document, accompanied by its metadata (qualified timestamping, certificate chain, verification report), must be archived in a system compliant with NF Z 42-013 or ISO 14721 (OAIS).
• Delegation and Authorization Management: a municipality must be able to configure signature workflows reflecting its internal delegations (delegation from the mayor to the Deputy General Manager, joint signature of two elected officials, etc.).

Progressive Implementation: The Recommended Method

DGFIP and AMF (Association of Mayors of France) recommend a three-phase approach: (1) audit of the existing situation and mapping of acts to be digitized, (2) pilot on a limited scope (e.g., routine supply contracts), (3) rollout with staff training and communication with external partners.

Certyneo's ROI calculator can help you quantify expected return on investment based on the volume of contracts processed annually by your collectivity, taking into account costs of printing, postage, physical storage, and administrative management.

Finally, for collectivities already equipped with an existing solution and wishing to migrate to a more powerful platform, the Certyneo migration offer provides turnkey support including data recovery and continuity of workflows in progress.

Legal Framework Applicable to Electronic Signature in Territorial Collectivities

Electronic signature used by territorial collectivities is part of a coherent regulatory framework that must be mastered to secure each digitized act.

French Civil Code, Articles 1366 and 1367: Article 1366 states that "electronic writing has the same probative force as writing on paper, provided that the person from whom it originates can be duly identified and that it is established and maintained under conditions such as to guarantee its integrity." Article 1367, for its part, recognizes the validity of electronic signature when it "consists in the use of a reliable identification process guaranteeing its link with the act to which it is attached," with a strengthened presumption of reliability when qualified eIDAS signature is used.

eIDAS Regulation No. 910/2014 of the European Parliament and Council: This regulation, directly applicable in all Member States, defines the three levels of electronic signature (simple, advanced, qualified), establishes requirements applicable to qualified trust service providers, and guarantees cross-border recognition of qualified signatures (Article 25). The eIDAS 2.0 revision (EU Regulation 2024/1183) strengthens these provisions and introduces the European digital identity wallet (EUDIW).

GDPR Regulation No. 2016/679: Processing of personal data of signatories (identity, contact details, possible biometric data) is subject to the principles of minimization, purpose, and security of GDPR. Collectivities must maintain a record of processing and ensure that their provider acts as a data processor with a DPA (Data Processing Agreement) compliant with Article 28.

NIS2 Directive (EU 2022/2555): Transposed into French law by Law No. 2023-703 of August 1, 2023 and its implementing decrees, the NIS2 Directive imposes on public administrations — including collectivities of significant size — strengthened requirements regarding cybersecurity, in particular the management of risks related to the digital supply chain. The signature provider must be able to document its security measures.

ETSI Standards EN 319 132 and EN 319 122: These standards define the formats of advanced electronic signature (XAdES, CAdES, PAdES) accepted in public procurement. The PAdES-B-LTA format (PDF Advanced Electronic Signature with Long Term Archival) is particularly recommended for contractual documents to be retained over long periods.

Order No. 2014-1329 and Decree No. 2020-1407: These texts govern remote deliberations and electronic signature of acts of the deliberative bodies of territorial collectivities.

Legal Risks in Case of Non-Compliance: An act signed with an inappropriate signature level or by a non-qualified provider can be annulled by the administrative court in case of litigation. Prefectural legality review can also reject acts transmitted through non-compliant channels. It is therefore imperative that the Data Protection Officer (DPO) and the legal department of the collectivity validate the deployment framework before any production rollout.

Concrete Use Scenarios in Territorial Collectivities

Scenario 1 — A Medium-Sized Municipality Digitizes its Road Work Public Contracts

A municipality of approximately 25,000 inhabitants manages between 40 and 60 public contracts annually, including about twenty above the formal competitive procedure threshold. Before digitization, each contract required printing 3 to 5 copies of the contractual file, a physical signature process involving the mayor, the Deputy General Manager, and the public accountant (DGFIP representative), then sending by registered mail to the winner and to the prefecture for legality review. The average time between award and contract notification reached 18 business days.

After deploying a qualified electronic signature solution integrated into its buyer profile, the municipality reduced this timeframe to 4 business days, a reduction of 78%. Direct savings on printing, postage, and archival management costs were estimated at approximately €12,000 per year. The legality review, now conducted via the @ctes portal with electronic signature, takes place within 48 hours compared to an average of 7 days previously.

Scenario 2 — A Department Digitizes Its Subsidy Agreements with Associations

A departmental council awards more than 1,200 subsidies to local associations each year, each resulting in a bilateral agreement. Paper management mobilized a team of 4 part-time staff for 3 months a year, with a rate of return of agreements signed on time barely above 60% — associations often delaying the return of signed documents.

After deploying an advanced electronic signature solution in white label, the department automated the sending of agreements electronically with automatic reminders. The on-time signature rate rose to 94% from the first year. The gain in full-time equivalents represents approximately 1.2 FTE/year. Automatic archiving in a digital safe compliant with standards also reduced physical storage costs by 35%.

Scenario 3 — An Inter-Municipality Secures Its Community Council Deliberations

A metropolitan area grouping 18 municipalities holds on average 12 community councils per year, each producing between 20 and 50 deliberations. Physical signature of each deliberation by the president and delegated vice-presidents involved heavy logistics, with sometimes difficult travel for elected officials residing in peripheral municipalities.

By deploying a remote qualified signature workflow, allowing each elected official to affix their signature from their smartphone or computer with their personal certificate, the inter-municipality eliminated geographic constraints and reduced the time for deliberation finalization from 12 days to an average of 2 days. The savings from avoided travel (mileage reimbursement, staff time) were estimated at approximately €8,500 per year. The complete traceability of signatures and timestamps also simplified responses to litigation appeals.

Conclusion

Electronic signature has established itself as a structuring tool for the modernization of territorial collectivities. Whether for public contracts, partnership agreements, deliberations, or administrative orders, contract digitization in municipalities and town halls offers measurable gains: reduction in processing times, direct savings on administrative costs, strengthening of the legal security of acts, and improvement of relationships with partners and providers. The regulatory framework — eIDAS, Civil Code, GDPR, NIS2 — provides a solid basis for securing this transition, provided you choose a qualified provider and calibrate the signature level to the risk of each act.

Certyneo supports territorial collectivities in this transformation with an eIDAS-compliant platform, hosted in Europe, equipped with advanced delegation management and API integration with the main public information systems. Discover our rates and offers dedicated to the public sector or contact our team for a personalized demonstration.