The phrase "additional certificates" is correct and usable in written English.
You can use it when referring to extra or supplementary certificates that may be required or provided in a specific context, such as education or professional qualifications.
Example: "To complete your application, please submit any additional certificates that support your qualifications."
Alternatives: "extra certificates" or "supplementary certificates".
Members may buy four additional certificates for $25.
For each renewable energy certificate (REC) earned by small scale photovoltaics until 2012, the market provides four additional certificates under the current banded renewable targets.
A border agency letter to the council states: "We received many more requests for initial and additional certificates of sponsorship than we had available this month … As a result, only requests for tier 2 general and work permit extensions of leave for new and existing sponsors were successful at this month's panel".
(a) Copies may be made of any public records or indexes of the Copyright Office; additional certificates of copyright registration and copies of any public records or indexes may be furnished upon request and payment of the fees specified by section 708.
Series V, Oversize, includes additional certificates and degrees.
Hence the detection of additional certificates with a logistics focus is very difficult.
§ 119.36 Additional certificate application requirements for commercial operators.
She received her M.S.W. from the University of Michigan School of Social Work where she also earned an additional certificate in International Social Work Practice.
To prevent the introduction of infectious diseases, no plant or part of a plant may be imported without a permit from the Ministry of Agriculture, and fresh fruit requires an additional certificate signed by an appropriate government official in the exporting country.
In contrast, in German-speaking countries, any physician (for example, a surgeon or anesthetist) with an additional certificate in emergency medicine is authorized to work as an emergency doctor at an accident site.
There were no associations between knowledge about CE and the following characteristics of the participants: gender, age, family status, living with children, having an additional Certificate of Added Qualification nor hours of work per week.
