The phrase 'service in operation' is a correct and usable phrase in written English.
You can use it to refer to any kind of service that is currently functioning, such as a customer service help desk or the public bus service. For example, you could say: "The customer service help desk is now open and their service is in operation."
CCCS, for instance, hopes to have a special service in operation for this sector of debtors in a year or so, a service in which the counsellors would have specialist knowledge of mental health problems.
Whilst we have both kinds of web service in operation, we primarily use REST service.
But there are no trains running between Benton and Monkseaton in North Tyneside, and a replacement bus service in operation.
What's confusing is that De Geer tells us that Sweden, where iZettle has a commercial service in operation, does not have to shut down its Visa payment option.
Since last August, Uber says more than 250,000 people in the Helsinki area have opened its app despite there being no service in operation — which it touts as showing "clear demand" for its service.
Consider also that the additional latency due to the over-the-air data transmission is not included in our tests, thus it is really important to keep the measured latency value as small as possible in order to have an acceptable service in operation.
Page A8 INQUEST ON MI-6 OPERATION British officials announced that they had ordered a criminal investigation into the role played by MI-6, the country's secret intelligence service, in operations that led to the imprisonment and torture of two Libyan opponents of Col. Muammar el-Qaddafi.
LONDON — British officials announced on Thursday that they had ordered a criminal investigation into the role played by MI6, the country's secret intelligence service, in operations that led to two Libyan opponents of Col. Muammar el-Qaddafi being delivered to Libyan jails, where, they said, they were tortured by Colonel Qaddafi's secret police.
Murdoch was appointed a Commander of the Order of the British Empire (CBE) on 25 June 1946 for "conspicuous service in operations against the Japanese" during World War II.
He was appointed a Commander of the Order of the British Empire (CBE) in the King's Birthday Honours that June for his "conspicuous service in operations against the Japanese" while leading Northern Command during the war.
He was appointed a Commander of the Order of the British Empire (CBE) in the 1946 King's Birthday Honours for his "conspicuous service in operations against the Japanese" while leading North-Western Area Command.
