The phrase "at once approved" is correct and usable in written English.
It can be used to indicate that something has been approved immediately or without delay.
Example: "The proposal was at once approved by the committee, allowing the project to move forward without any further discussion."
Alternatives: "immediately approved" or "approved right away".
When World War II broke out, he had already developed an idea for a military bridge, and in late 1940, at a conference on the problem of providing temporary spans capable of taking heavy loading, his concept of a strong but relatively light steel truss that could be prefabricated in sections was at once approved.
It was no coincidence that last month Mr Castro proposed, and his rubber-stamp legislature at once approved, fierce penalties for all who "collaborate" with the American government or, specifically, with foreign media in the effort to strangle Cuba's economy or upset its socialist system.
In theory, airstrikes can be carried out very quickly, once approved at headquarters.
Fan sites can register at the official site and, once approved, get access to site-building materials, such as photos and other graphics, that aren't available to the general public.
His Democratic predecessor, Ann Richards, never cosy with environmentalists, once approved a plan to reprocess flammable napalm at a Houston plant.
Once approved by ARIPO, the patent is registered at the Registrar-General's Office in the Ministry of Justice in Uganda; no examination takes place at the national level [ 14].
Knowledge of a new drug once approved may be extensive by current guidelines but ultimately imperfect at the time of FDA approval.
Once approved, membership is valid for five years.
Once approved, some have encountered legal, financial and personal troubles.
Once approved by the Bush administration, the CIA treatment of Abu Zubaydah became a template for its torture of at least 118 other detainees, the Senate report documented.
Once approved, they enter the big pool.
