The phrase "a single set of rules" is correct and usable in written English.
You can use it when referring to a unified or consistent framework of guidelines or regulations that apply to a particular situation or group.
Example: "In our organization, we adhere to a single set of rules to ensure fairness and consistency in decision-making."
Alternatives: "one unified set of guidelines" or "a cohesive framework of regulations."
There will also be a single set of rules covering the payment of pensions.
Shouldn't there be a single set of rules for describing it, rather than two inconsistent sets?
That's a single market, a single set of rules, and basically a single language.
Industry lobbying prompted legislators to create a single set of rules for e-mail advertisements, whether solicited or unsolicited.
The negotiations were about reducing the varying sets of regulations and looking to a "single set of rules" instead, he added.
The proposed legislation would subject companies to a single set of rules for calculating their taxable profits, according to drafts seen by the Guardian.
Unfortunately, a single set of these rules do not meet the needs of the wide range of standards being developed.
States will have to conform to a single set of VAT rules and keep their VAT rates within five national bands, none of which exceeds 25%.
The EC notes that a single set of accessibility rules would mean developers could offer products and services across the entire European Union "without extra adaptation costs and complications".
Since 2013, when the Supreme Court opened the door to state collection requirements for many remote sellers, big e-tailers have come to prefer a single set of simplified rules rather than a morass of conflicting state and local requirements.
As the underlying content infrastructure of the web has shrunk to a handful of companies, we are now at a crossroads in which that American social media platform must now accommodate those Chinese censorship demands, potentially extending elements of them globally as it attempts to devise a single set of moderation rules applied to all countries and cultures.
