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Discover LudwigThe phrase 'valid authorisation' is correct and usable in written English.
You can use it when referring to formal permission or approval from an organization or governing body. For example, "We are currently awaiting valid authorisation from the Department of Education to proceed with the project."
Exact(1)
Patients also had to be age ≥18 years, live in Olmsted County and have valid authorisation to review medical records for research purposes in accordance with Minnesota State statutes.
Similar(56)
All relevant information regarding defective health products was compiled and exclusion criteria were as follows: veterinary medicines; medicines lacking efficacy or acquiring general safety issues; herbal and probiotic products; dietary and cosmetic products; and other natural heath product recalled for regulatory reason (ie, those do not have a valid marketing authorisation).
It results in a single marketing authorisation (MA) that is valid throughout the EU.
Some of the principles proposed include justification by faith, the acceptance of baptism and the Lord's Supper as the only valid sacraments, the offering of the cup to the laity, the holding of worship services in the vernacular, and the authorisation of priests to marry.
Next step: abolish authorisation".
Valid question.
"The identification was done without authorisation.
Each authorisation may cover numerous individuals.
We have not sought that authorisation".
Efsa has never refused a GM authorisation.
That is still valid – flawed, but valid".
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com