first come first served

Noun

uncountable

(operations) A service policy in which the first to arrive for service receives the service first.

Japanese Meaning

先着順方式：最初に来た者が優先してサービスを受けるという方針

The community clinic operates on a first come first served policy, so if you need care, please arrive early.

その地域の診療所は先着順で対応しています。受診が必要な場合は、早めにお越しください。

Sense（1）

(operations) A service policy in which the first to arrive for service receives the service first.