Does the State of Michigan have a right to abolish laws of the Territory of Michigan? Does the 14th Congress have a right to abolish the laws of the 13th Congress? Can the Boy Scouts modify the Girl Scouts Handbook? The answer is[:]
... only the entity that created a law can abolish or modify it. That is not to say a newer entity [i.e., iteration of government] cannot adopt laws of its own but at no time can they modify the original law.
Nope. A law passed is a law passed. Now I agree that the 14th Congress can choose to enact a NEW law that affects how their OWN employees are going to approach a problem.
A new congress is a new government.
The laws of the old government are still in effect until a new congress changes or abolishes them FOR THEIR OWN EMPLOYEES. A new congress
cannot create ex post facto a law that an employee of the previous congress relied upon for his own actions.