Can Congress include a clause to make the legislation they pass null upon certain conditions?

I'm wondering whether Congress can include a clause or provision in a bill that says: if this condition is met, then this legislation is null and void. The alternative is that they can only nullify legislation by voting to do so. However, it still seems the clause would meed the alternative.





My legislative process class focused on the Executive for some reason so I have no idea. Just curious. Best answer to whoever provides the best explanation and preferably a reputable citation.|||They could, but they aren't likely to. Exit Clauses are extremely common in business contract language, but lawmakers seem to prefer using expiration dates instead.|||I like the idea and I think there is merit to it. It is not an uncommon thing and in government it is used in contracts and in personnel matters. The clause could be used in legislation moving in in both directions; when an action (event) occurs or when it fails to occur. An example - Congress should place a high premium tax on all profits beyond reality earned from essentials such as gas, oil and pharmaceuticals. The tax would only cut in when profits reached an established point and kick out when they drop below an established point. Congress should also consider freezing escalating costs on some products and services as they did in the 70s.