The regulations of the Prime Minister's Office on Government Procurement by Electronic Method B.E. 2549 were issued with the intention of increasing the clarity and fair price competition of public procurement. However, it was found that problems of ambiguity and unfair price competition did not decrease when the regulations were applied for a period of time. In addition, the scope of the regulations that were enforced could also lead to legal problems. In order to study the problems with clarity and fair price competition, a review was conducted of the literature on regulations of government procurement from past to present, the principles of procurement in other countries, and global principles of procurement, including several supplementary measures. It was found that certain conditions specified in the regulations did not conform to the principles of clarity and fair price competition. Regarding the scope of regulation enforcement, the researcher studied the jurisprudence of the public administration and the authorities in the budget administration of organizations. It was found that the scope of the regulations made with no concerns on those jurisprudences could cause several legal problems in their enforcement, including the determination by authorities in organizational bodies established by law. It is recommended that the Electronic Procurement should only be a method for bids according to the regulations of the Prime Minister's Office on Procurement B.E. 2535, and that larger bids should be specified electronic methods. Moreover, the specification of the supply for procurement should not be technologically complicated. Actions in this manner will resolve some of the requirements of the regulations that are inconsistent with the principles of clarity and fair price competition. They will also help resolve problems associated with the legal scope of their enforcement.