Since the 1986 tax reform, politicians have increasingly used the tax code to serve social purposes.

FORBES: Supreme Court Says Tax Expenditures Aren't Government Spending

It is designed to serve as a universal code of conduct to guide people and nations toward sustainable development.

CNN: Earth Charter sets course for sustainable living

The author adds that, crucially, however, code of ethics not only serve journalists.

UNESCO: Communication and Information

"Originally created to serve the development of our sport, the Code has mutated into a time bomb that we are wholly unable to contain, " he wrote.

WSJ: Menu

Only if people in his city believe that the officers on patrol share the values of the communities they serve can one ever expect to break the omerta - Italian for code of silence - his detectives encounter.

BBC: The police are the public and vice versa

Ms. Olson explains that, not only is the Internal Revenue Code more complicated than ever, but the IRS must serve an increasingly diverse taxpayer base, respond to the explosion of tax-related identity theft, and administer spending programs that require the IRS to distinguish between valid and fraudulent refund claims.

FORBES: The Case For Investing in the IRS

It is the Islamic code embodying the way of life for Muslims and is intended to serve as the civic law in Muslim countries.

CENTERFORSECURITYPOLICY: Center For Security Policy