The most well known regulatory body would be the IRS, or the Internal Revenue Service. This service main focus is to manage and impose the internal revenue law. This group is responsible for the collection of taxes.
The FAF (Financial Accounting Foundation) is responsible for the administration and finances of the financial accounting standards board, the financial accounting standards advisory council, the governmental accounting standards advisory council, and the governmental accounting standards board. The FASB (Financial Accounting Standard Board) is responsible for the standards of the non-governmental financial accounting and reporting.
The SEC (The Securities and Exchange Commission). This commission’s main purpose is to watch security of the participants. They require companies to follow GAAP (Generally Accepted Accounting Principles).

The GASB (Governmental Accounting Standards Board) this board is responsible for generating state and local government. It was also developed to mirror FASB on state and local levels.
The FASAB (Federal Accounting Standards Advisory Board) was developed to spread accounting standards after considering the financial and budgetary information needed for executive agencies, congress groups and citizens.
The IASB (International Accounting Standards Board) creates accounting standards through a consulting process with individuals from around the world. This is done to ensure that financial reports are quality reports and that they are very easy to read and understand.
The PCAOB (Public Accounting Oversight Board) this was created when the Sox Act was created. This protects investors and their investments from public traded companies.
The ACIPA (American Institute of Certified Public Accountants) create the financial accounting and reporting standards through the FASB. They also assist with setting standards and technical support.