[Vocabulary] What does "introduce" mean in this sentence?

[Saraj Zhou]

[FONT=&quot]"An increasing number of restrictions on those yet to receive a Covid shot are being introduced in Europe and the U.S." [from CNBC]

What does "introduce" mean in this sentence?

Thank you in advance![/FONT]

 

[5jj]

See definition 2 here: https://www.macmillandictionary.com/dictionary/american/introduce