The phrase "a voluntary code of conduct for" is correct and usable in written English.
It can be used when referring to a set of guidelines or principles that organizations or individuals choose to follow voluntarily, often in a specific context or industry.
Example: "The organization has established a voluntary code of conduct for its members to promote ethical behavior and accountability."
Alternatives: "an optional set of guidelines for" or "a self-imposed standard for".
The European Union is taking a cooperative approach, proposing to its members that they follow a voluntary code of conduct for these funds.
In 2006, the Securities and Exchange Commission reached a $13 million settlement with 15 investment banks, and the industry agreed to impose a voluntary code of conduct for the auction-rate market.
Prime Minister David Cameron has made gender balance in the boardroom a personal mission, using the bully pulpit of office to push for a voluntary code of conduct for executive search firms and succession planning within companies.
In addition, Obama directed the Commerce Department to work with companies and the drone industry to develop a voluntary code of conduct for the private sector regarding surveillance and privacy protections.
Mr. Durbin has urged Facebook to join the Global Network Initiative, a voluntary code of conduct for technology companies, created in 2008, that requires participating businesses to take reasonable steps to protect human rights.
Mr. Crean added that the government would review next year the Indigenous Art Code, a voluntary code of conduct for the industry that outlines procedures for issuing certificates of authenticity.
The Bush administration has for months called for a voluntary code of conduct and previously asked for the World Bank and the International Monetary Fund to help draw one up.
In a draft deal, brokered by the government at a crisis summit, broad principles for a voluntary code of conduct were drawn up aimed at giving farmers more bargaining power.
John C. Gamboa and Robert L. Gnaizda of the Greenlining Institute implored Mr. Greenspan to use his bully pulpit and press for a voluntary code of conduct.
Though, for now, it's been pursuing a voluntary Code of Conduct approach.
