Če določbe v zvezi s proizvodnjo zahtevajo zaupno obravnavo, ne smejo biti navedene v samem ETA, temveč jih mora hraniti organ za tehnična soglasja, ki izdaja ETA, v tehnični dokumentaciji ETA in jih poslati organom, vključenim v postopek potrjevanja ustreznosti, samo če je to potrebno za njihove naloge preskušanja, inšpekcijskih pregledov in certificiranja.
Where provisions concerning manufacturing require confidential treatment, they should not be indicated in the ETA itself but kept by the issuing approval body in the technical documentation of the ETA and only communicated to the approved bodies involved in the conformity attestation procedure in so far as is necessary for their testing, inspection and certification tasks.