The installation of new social management and accounting software and its maintenance over 10 years

✓The time scope mentioned is a 10‑year maintenance period, but no detailed phasing or quantities (e.g. number of users, modules) appear in the excerpts.

❓On award criteria and weighting, the input text does not provide concrete award criteria (such as price, quality, methodology) nor any weighting.

✓It explicitly frames the selectieleidraad as limited to selection and states that the detailed bestek will be sent only to selected candidates.

✓Therefore, award criteria and their weighting must be assumed to be set out in another document (the bestek) not included in the current excerpts.

✓As to risks and special conditions, the text highlights several aspects, such as: exclusion grounds under Articles 67–69 of the Law of 17 June 2016 and the possibility of “corrigerende maatregelen” / “mesures correctrices” (Article 70); mandatory use of electronically retrievable attestations for social security, tax, non‑bankruptcy, and annual accounts; and strict electronic submission via the e‑Procurement platform (no paper or e‑mail submissions), with logging of receipt data.

✓Subcontracting is allowed but regulated: if a candidate relies on the capacities of specific subcontractors (study/professional qualifications or relevant experience) for qualitative selection, it is then obliged to use these designated subcontractors in contract execution, and any new subcontractors require prior approval by the contracting authority.

✓The documents reference general Belgian and EU regulatory frameworks on labour protection, illegal employment of third‑country nationals, data protection (GDPR), and cybersecurity (NIS2), which implies obligations and potential sanctions, but detailed penalties, guarantees, validity period of tenders and site visit arrangements are not specified in the excerpts.

⚠Concerning contradictions or corrections, the text shows at least one clear correction: the deadline for submitting requests to participate appears first as “uiterlijk vóór 7 september 2026 om 12.00 uur”, but in the erratum version it is updated to “uiterlijk vóór vrijdag 27/11/2026 om 12.00 uur”.

⚠Given the label “erratum valid” and the later date, the applicable deadline is Friday 27 November 2026, 12:00, via e‑Procurement.

✓Question deadlines are indicated, such as: additional information can be requested via the e‑Procurement form accessible from Thursday 29/10/2026 until 12:00, which governs clarification requests.

Answers on the required criteria

Must securities be provided (bid bond, performance or warranty guarantee)? If so: which, in what amount and by when?

❓Regarding securities such as bid bonds, performance guarantees or warranty guarantees, the provided text does not specify that any financial security must be lodged at the participation stage, nor does it define a required amount, type or date of provision.

❓The selection documents focus on exclusion grounds, qualitative selection criteria and formal submission requirements; any provisions about performance or warranty guarantees would have to be checked in the (not reproduced) main specifications or contract conditions, as they are not mentioned in the cited passages.

Is subcontracting allowed? If so: with which limits and which disclosure duties?

✓As to subcontracting, the documents explicitly allow it.

✓The candidate may rely on the capacities of subcontractors or other entities, provided that he attaches “the necessary documents” to the request to participate showing the commitment of these subcontractors/entities to put the required resources at the candidate’s disposal.

✓Moreover, if the economic operator relies on such entities for qualitative selection (for study/professional qualifications or relevant experience), he is obliged to actually use those designated subcontractors during performance.

✓The use of any other subcontractors is subject to the prior consent of the contracting authority.

✓Disclosure duties include: indicating in the participation form whether subcontractors will be used, specifying the portion of the contract to be subcontracted, and identifying the subcontractors concerned.

Is there a site visit, and is attendance mandatory? If so: when?

❓With respect to site visits, the excerpts do not mention any site visit, nor any obligation to attend one.

❓Therefore, based solely on the cited text, no site visit or mandatory attendance is specified.

In which language must the tender and the supporting documents be submitted, and are documents in other languages accepted?

✓Concerning language, the request to participate must be drawn up either in Dutch (Nederlands) or French (français).

✓Both the Dutch and French versions state that the candidate prepares the request “in het Nederlands of Frans / en néerlandais ou français.” If the candidate uses documents other than the provided form, he bears full responsibility for their complete conformity with the official form.

❓The text does not state that documents in other languages (such as English or German) are accepted, so only Dutch or French are clearly permitted for the tender submission and supporting documents.

How long is the bidder bound by the tender (validity period), and is there a deadline for bidder questions? If so: until when?

❓Finally, on tender validity and question deadlines: the provided text does not state a validity period during which bidders are bound by their tenders, so this remains unspecified here.

✓However, it clearly sets a deadline for questions/requesting additional information: all supplementary information can be obtained via the e‑Procurement forum linked to the dossier, “accessible from Thursday 29/10/2026 until 12h,” which implies that questions must be submitted via that forum by 29 October 2026 at 12:00.

Further details

✓The text concerns a Belgian public procurement procedure launched by OCMW Ukkel / CPAS d’Uccle (Brussels-Capital Region, Belgium) for the “installation of new software for social management and accounting and maintenance for 10 years,” conducted as a competitive procedure with negotiation.

✓It sets out the rules for requests to participate (selectieleidraad / formulaire de participation), qualitative selection, use of subcontractors, language, and deadlines, from the contracting authority’s Belgian legal perspective under the Belgian Public Procurement Law of 17 June 2016 and related royal decrees.

⚠For the submission of requests to participate, the latest erratum fixes the electronic submission deadline at Friday 27/11/2026 at 12:00 via the Belgian e‑Procurement platform; paper or e‑mail submissions are explicitly not allowed.