lay down

If you lay down your weapons, you stop fighting:
They laid down their weapons and surrendered.
Mediators have persuaded both sides to lay down their arms.

to officially establish a rule, or to officially say how something should be done:
This is in line with the policy laid down by the management.
(Cambridge Advanced Learner's Dictionary & Thesaurus からの lay sth down の定義 © Cambridge University Press)

ビジネス英語
to officially establish a rule, or to officially state the way in which something should be done:
This is in line with the policy laid down by the management.
lay down standards/requirements The new law would lay down minimum standards for private security companies.
New managers tend to lay down the law and demand total compliance with their wishes.
(Cambridge ビジネス英語辞典 からの lay sth down の定義 © Cambridge University Press)

- Cambridge Dictionary