This study examines the mechanisms of government affairs administration and the conditions for effective governance, focusing on proposing codes of conduct in the aim of reducing corruption. The study deals with corruption as a pervasive disease in the Arab region, especially in the field of public administration. It treats public administration as a set of structures, procedures and practices, with an emphasis on public sector reform measures. It deals with governance as a set of laws and legal rules that the government/state or business networks implement, with an emphasis on communication and decision-making processes among the actors involved. The study concludes that the public sector in most countries of the Arab region is the main arm of the government, albeit to varying degrees. The public sector in these countries is huge, perhaps bloated, certainly multi-layered, and largely formal and centralized, relying on hierarchical management based on orders and control.