International Labor Standards In The Global Economy

Over a period of years trade unions have exercised pressure on multinational companies to sign international framework agreements. IFAs are negotiated between a global union’s federation and a corporation to apply to the company’s global operations, often including their supply chain. For trade unions, they are a way of promoting recognition of their organization and worker rights at a global level.
The question arises, can an IFA or code of conduct be enforced in a court of law? And what law would the court apply? And whether or not they are enforceable, what kinds of commitments is a multinational making when it signs one?