Final answer:
Section 4205 of the Patient Protection and Affordable Care Act gives the responsibility of enforcement to the federal government, including agencies like CMS and the IRS.
Step-by-step explanation:
Section 4205 of the Patient Protection and Affordable Care Act (PPACA) gives the responsibility of enforcement to the federal government. The act establishes provisions for various agencies and organizations to enforce the law. For example, the Centers for Medicare and Medicaid Services (CMS) is responsible for implementing and enforcing provisions related to healthcare programs like Medicare and Medicaid. The Internal Revenue Service (IRS) plays a role in enforcement by ensuring compliance with tax-related provisions of the PPACA, such as the individual mandate and employer requirements.