проверьте, пожалуйста, грамматику

[Elmira69]

Если требуется согласовать продление использования пожаро-технического оборудования, то заключение о возможности продления использования дает Департамент пожарной службы

In case of prolongation of fire fighting equipment use, it is necessary to get a conclusion for the prolongation from Fire Fighting Department

Спасибо всем,

[Mo]

пожаротехнического пишется слитно

Should there be a requirement to extend the operating life of fire fighting equipment, the operation extension permit can be obtained from the Fire Service Department

imho

[triplet]

If the need should arise to extend the service life of... an appropriate (extension) request will be presented to the Fire Fighting Department for approval. - имхо

[PERPETRATOR™]

Should it become necessary to use firefighting equipment for a longer period, an opinion/conclusion on the possiblity of such use should be sought from the FD.