Treaties may be seen as 'self-executing', in that merely becoming a party puts the treaty and all of its obligations in action. Other treaties may be non-self-executing and require 'implementing legislation'—a change in the domestic law of a state party that will direct or enable it to fulfill treaty obligations. An example of a treaty requiring such legislation would be one mandating local prosecution by a party for particular crimes.
Signing a self-executing treaty automatically does what for a party? (If the question is unanswerable, say "unanswerable")
puts the treaty and all of its obligations in action