If, in certain circumstances, an organization deems it proper to cover expenses for a spouse, dependent, or other person accompanying someone on business travel, the payment generally must, by law, be treated as compensation to the individual traveling on behalf of the organization. This principle need not apply to de minimis expenses such as the cost of a meal at organization functions where participants are invited to bring a guest.
(From The Principles for Good Governance and Ethical Practice: Reference Edition,
Published in 2007)
These questions – from the Principles Workbook (PDF) – are intended to prompt discussion about the principle, assess the polices and practices of your organization, and encourage your organization to take steps to identify where improvements should be made.