Last week, the SEC approved Nasdaq amendments that describe the speed with which foreign companies must disclose waivers to their codes of business conduct.

The order relates to NASD Rule 4350(n), which requires listed companies maintain a code of conduct that complies with Section 406 of Sarbanes-Oxley. The code is applicable to all directors, officers and employees.

According to the NASD rules, only boards can waive ethics codes for executives or directors, and the waiver must be disclosed promptly to shareholders, along with the reasons. U.S. companies have five business days to disclose those waivers on Form 8-K.

The latest rule change specifies that all issuers, including foreign public companies, would have to comply with that same five business day requirement.

The rule would not, however, apply to foreign private issuers, who must disclose waivers either in a Form 6-K or in the next Form 20-F or 40-F.

We've made the SEC order and related documents available from the box above, right, and have copied below "interpretive material" on codes of conduct as posted by NASD:

Interpretive Material: IM-4350-7. Code of Conduct

Ethical behavior is required and expected of every corporate director, officer and employee whether or not a formal code of conduct exists. The requirement of a publicly available code of conduct applicable to all directors, officers and employees of an issuer is intended to demonstrate to investors that the board and management of Nasdaq issuers have carefully considered the requirement of ethical dealing and have put in place a system to ensure that they become aware of and take prompt action against any questionable behavior. For company personnel, a code of conduct with enforcement provisions provides assurance that reporting of questionable behavior is protected and encouraged, and fosters an atmosphere of self-awareness and prudent conduct.

Rule 4350(n) requires issuers to adopt a code of conduct complying with the definition of a "code of ethics" under Section 406(c) of the Sarbanes-Oxley Act of 2002 ("the Sarbanes-Oxley Act") and any regulations promulgated thereunder by the Commission. See 17 C.F.R. 228.406 and 17 C.F.R. 229.406. Thus, the code must include such standards as are reasonably necessary to promote the ethical handling of conflicts of interest, full and fair disclosure, and compliance with laws, rules and regulations, as specified by the Sarbanes-Oxley Act. However, the code of conduct required by Rule 4350(n) must apply to all directors, officers, and employees. Issuers can satisfy this obligation by adopting one or more codes of conduct, such that all directors, officers and employees are subject to a code that satisfies the definition of a "code of ethics."

As the Sarbanes-Oxley Act recognizes, investors are harmed when the real or perceived private interest of a director, officer or employee is in conflict with the interests of the company, as when the individual receives improper personal benefits as a result of his or her position with the company, or when the individual has other duties, responsibilities or obligations that run counter to his or her duty to the company. Also, the disclosures an issuer makes to the Commission are the essential source of information about the company for regulators and investors - there can be no question about the duty to make them fairly, accurately and timely. Finally, illegal action must be dealt with swiftly and the violators reported to the appropriate authorities. Each code of conduct must require that any waiver of the code for executive officers or directors may be made only by the board and must be promptly disclosed to shareholders, along with the reasons for the waiver. This disclosure requirement provides investors the comfort that waivers are not granted except where they are truly necessary and warranted, and that they are limited and qualified so as to protect the company to the greatest extent possible. Consistent with applicable law, domestic issuers must disclose such waivers in a Form 8-K within five business days.

Each code of conduct must also contain an enforcement mechanism that ensures prompt and consistent enforcement of the code, protection for persons reporting questionable behavior, clear and objective standards for compliance, and a fair process by which to determine violations.