The phrase "authorities implemented" is correct and usable in written English.
It can be used when discussing actions taken by governing bodies or organizations to put policies, laws, or measures into effect.
Example: "The authorities implemented new regulations to improve public safety in the city."
Alternatives: "authorities enacted" or "authorities established".
The report shows in total that nearly 1,400 schools from 118 local authorities implemented the strategy as a cost-effective method to tackle literacy difficulties.
Hit hard by the collapse in global trade in late 2008 and early 2009, Chinese authorities implemented an aggressive proactive fiscal stimulus to counter the functional equivalent of a full-blown recession.
Between April and August, NDH authorities implemented a policy of widespread incarcerations, massacres, forced emigration, and murder of Serbs.
Although not the only concentration camp where the German authorities implemented their extermination through labour (Vernichtung durch Arbeit), Mauthausen was one of the most brutal and severe.
In order to save this species, the Spanish authorities implemented a captive breeding program recruiting lynxes from the wild.
When the outbreak began, Victorian health authorities implemented the contain phase (3 ), and laboratory confirmation of cases was conducted by the Victorian Infectious Diseases Reference Laboratory (VIDRL).
The OSCE would play a leading role in helping the authorities implement the agreement.
Both companies agreed to cooperate with authorities, implement compliance improvements and become subject to oversight by an external monitor.
The fate of journalistic independence in China will depend on whether the authorities implement or backtrack on their tacit concessions.
This plan can only work if the football authorities implement it and Asian people realise that they have to start engaging and get involved in our national game".
"Our goal is to sensitise people to the importance of preserving wildlife," she says, "and then in collaboration with the competent Malian authorities implement programmes to reintroduce certain species, such as the addax and oryx, but it will be years".
