Which of the following is an example of soft law in cross-border cooperation?

• A. Non-binding guidelines, codes of conduct, and voluntary standards
• B. Binding treaties
• C. Customary international law
• D. Sanctions

Answer: (A)

Soft law refers to instruments that guide behavior without creating legal obligations or enforceable duties. In cross-border cooperation, non-binding guidelines, codes of conduct, and voluntary standards fit this category because they set expectations and encourage best practices without binding states to specific outcomes or providing formal remedies if they aren’t followed.

By contrast, binding treaties require formal consent and create legally enforceable obligations. Sanctions are enforcement tools that impose penalties to compel compliance, further signaling hard-law mechanisms. Customary international law is also binding, even though it isn’t written in a treaty, because it arises from widespread state practice and a belief that such practice is legally required.

So the example that best illustrates soft law is non-binding guidelines, codes of conduct, and voluntary standards.