Final answer:
The answer to the construction regulations question is that flanges and lips of load-bearing cold-formed steel floor framing members should not be cut or notched. Notching can compromise structural integrity and is not permitted by building codes.
Step-by-step explanation:
The question "Flanges and lips of load-bearing cold-formed steel floor framing members shall not be cut or ____." relates to construction regulations and standards for structural engineering, specifically dealing with the integrity of cold-formed steel framing used in floors. The correct answer is that these components of load-bearing cold-formed steel floor framing members should not be cut or notched. Notching and cutting can compromise the structural integrity of steel framing members, which can lead to reduced load capacity and potential structural failure. Therefore, it's crucial to adhere to building codes and standards that prohibit such alterations to essential structural elements.