The phrase "a common set of rules" is correct and usable in written English.
You can use it when referring to a shared framework or guidelines that are agreed upon by a group or community.
Example: "In order to ensure fair play, all participants must adhere to a common set of rules during the tournament."
Alternatives: "a shared framework of guidelines" or "a unified set of regulations."
Representatives of several leading football clubs met in 1863 to try to devise a common set of rules for football.
At the London summit, American officials should work with other governments to come up with a common set of rules to pry information from tax havens.
It gives countries too much latitude to make whatever commitments they want, relatively unconstrained by a common set of rules imposed "top down" by the agreement.
By being in the EU, British businesses also benefit from a common set of rules to do business and attract foreign investors.
Cameron also claims he wants Britain to stay in the heart of the single market and that this should be based on a common set of rules.
I accept, of course, that for the single market to function we need a common set of rules and a way of enforcing them.
The aim is to impose standards governing things like decency and advertising on these new forms of video, but critics regard the rules as too heavy-handed.Convergence will make the need for a common set of European rules more pressing as operators begin, for the first time, to venture onto each other's home turfs.
EU legislation ensures that passengers have a consistent set of consumer rights and increasingly a common set of safety rules as well".
If he wins the Democratic nominating fight with Senator Hillary Rodham Clinton, Mr. Obama said, "My folks will sit down and see if we can arrive at a common set of ground rules".
In an interview this year, Mrs. Reding said she had chosen to pursue an optional, parallel E.U. contract law regime because it would have taken a decade to get all 27 E.U. nations to agree legislatively on a common set of binding rules.
With no evidence of a common set of driving rules - or a willingness to use indicators, for that matter - the end result is often chaos, congestion and crashes.
