An APA is an administrative approach that aims to avoid transfer pricing disputes by establishing criteria for applying the arm length principle to transactions prior to such transactions. This contrasts with traditional audit techniques that verify whether transactions that have already taken place reflect the application of the arm length principle. Such approaches were relatively new at the time the 1995 OECD Council adopted the guidelines, and the tax committee therefore indicated, in point 4.161 of the transfer pricing guidelines, that it intended to “carefully monitor any extensive use of the APA and promote greater consistency in practice among countries that choose to use them.” In addition, point 4.163 of the guidelines states that “if possible, an APA must be concluded on a bilateral or multilateral basis between the relevant authorities as part of the treaty`s mutual agreement procedure.” 32. The person responsible for signing the agreement on behalf of the subject would be the person responsible for signing a return, subject to the power to compel the subject to the terms of the APA. 2. DGT found that in the event of significant difficulties or doubts in determining the method of applying the arm length principle, transfer pricing issues can be dealt with more effectively in real time if they occur, and not retroactively years later, for example. B key company staff. However, it is possible that a subject may be able to negotiate a unilateral APA involving only the taxpayer and the IRS. In this case, both parties negotiate an appropriate TPM only for U.S. tax purposes. If the taxpayer is involved in a dispute with a foreign tax authority over the registered transactions, he can apply for a discharge by asking the competent US authority to initiate a procedure of mutual agreement. This, of course, implies the entry into force of an applicable foreign income tax agreement.