There is a very useful and comprehensive checklist on best practice regulation. It is the APEC-OECD Integrated Checklist on Regulatory Reform. It is a general overview of the best practice requirements of best practice regulation in general – not just advertising regulation.
The checklist is available at this link http://www.oecd.org/regreform/34989455.pdf
The checklist is similar to other best practice regulation documents. For instance Paragraph A2 states “Consider alternatives to regulation where appropriate and possible, including self-regulation, that give greater scope to citizens and firms; when analysing such alternatives consideration must take account of their costs, benefits, distributional effects, impact on competition and market openness, and administrative requirements.”