What is the difference between a code and a standard?

• A. Code - a systematically arranged body of rules. When and where to do or not to do something. Standard - a rule for measuring or a model to be followed. How to do something, what materials to use.
• B. Code - a rule for measuring; Standard - a body of rules about when to act
• C. Code - a financial document; Standard - a reference manual
• D. Code - a design guideline; Standard - a legal statute

Answer: (A)

Codes are the mandatory rules that tell you when and where you must or must not do something. They are organized into a system of requirements aimed at safety and are typically adopted by authorities having jurisdiction, making them enforceable.

Standards provide the technical criteria for how to achieve a result. They describe methods, materials, performance, or measurement and are developed by consensus bodies. They guide practice and help ensure consistency, but they’re not automatically enforceable unless a code or regulation references them or they’re adopted.

That distinction is why the best choice describes a code as a rule for when and where to act and a standard as a rule for measuring or a model to follow, including what materials to use. The other options mix up the roles of codes and standards.