Numéro de déclaration d'existence

What?
Basically, to be able to write "conventions de formation" you need a "numéro de déclaration d'existence." The convention de formation means your clients can claim back the cost of the training from the OPCA
(organismes paritaires collecteurs agrées http://www.travail-solidarite.gouv.fr/informations-pratiques,89/fiches-pratiques,91/formation-professionnelle,118/les-organismes-paritaires,1082.html)

Where?
http://www.idf.pref.gouv.fr/dema/formation_prof.htm
for Ile de France only, as this is managed by region

What do I need again?
- 3 copies of their form (download from website)
- a copy of your first "convention de stage" or "contrat de formation" (signed less than 3 months ago)
- list of students and their jobs
- list of teachers, including yourself, with job title and qualifications
- your police record (see previous post)
- recent (calendar year) copy of your SIREN (see previous post)

Where do I send it? (in triplicate...)
for Ile de France:
service régional de Contrôle
210, quai de Jemmapes
CS 90105
75468 PARIS CEDEX 10
for other regions, check your prefecture website

As with all French bureacracy, it takes a while. In the meantime, you just write "numéro de déclaration d'activité : en cours d'attribution" on your conventions and official documents.