The phrase "authorization number" is correct and usable in written English.
It can be used when referring to a unique identifier assigned to authorize a specific transaction, request, or process.
Example: "Please provide your authorization number to proceed with the transaction."
Alternatives: "approval number" or "verification number".
Research involving animal experimentation has been approved by the authors' institution (authorization number 35-14) and conforms to the principles for the use and care of laboratory animals in compliance with French and European regulations on animal welfare.
All procedures were approved by the cantonal veterinary authorities (Lausanne, Switzerland) under authorization number 2191.
Experimental protocols were approved by the Swiss animal experimentation authorities (Service de la consommation et des affaires vétérinaires, Epalinges, Switzerland, Authorization number: 2301).
I don't know if it was a "reference," "confirmation" or "authorization" number.
(You have up to 10 days to return merchandise but must first call for a return authorization number).
In addition, the helpful rep gave me an authorization number, apparently attesting that I understood what had just transpired.
Experiments were approved and carried out in accordance with the national ethical committee for animal experimentation number 59, authorization number 2015071010466740.
Animals were treated in accordance with the Swiss federal law on the protection of animals with a protocol approved by the Canton of Geneva (Direction Générale de la Santé, authorization number GE/169/14).
Animal experiments were approved by the Nord-Pas-De-Calais ethical committee (CEEA 15/2009) and the Institut Pasteur Hygiene Committee (authorization number 75-1469), in accordance with European and French guidelines (Directive 86/609/CEE and Decree 87 848).
The study was approved by the Local Ethics Committee (authorization number 1706).
The Ethics Committee of our institution approved the study (authorization number 5012).
