Which document is primarily utilized to keep the Code of Federal Regulations (CFR) up to date?

The Federal Register serves as the crucial document for keeping the Code of Federal Regulations (CFR) up to date. It is published daily and contains proposed rules, final rules, and notices of federal agencies and organizations. This ongoing publication allows for the regular updating of regulations, ensuring that the CFR reflects the latest changes and additions to federal policies and guidelines.

The Federal Register includes various important legal notices and updates, making it essential for anyone involved in compliance and regulatory practices to stay informed. By reviewing the Federal Register, stakeholders can see what changes are proposed, when they take effect, and how they may impact various industries and sectors.

The other choices do not specifically perform the role of updating the CFR. National Safety Guidelines, Compliance Reports, and Safety Standards Bulletins may provide information and guidance related to safety standards and compliance practices within specific contexts or industries, but they do not serve the formal purpose of maintaining the federal regulatory framework like the Federal Register does.