145 (b) if he is a Civil Services personnel, be deemed to have retired from the Civil Services in accord with the existing Civil Services Regulations commencing from the day he has been appointed as a member of the Constitutional Tribunal of the Union; (c) if he is a member of any political party, he shall not take part in its party activities during his term, commencing from the day he has been appointed a member of the Constitutional Tribunal of the Union. 331. If a member of the Constitutional Tribunal of the Union wishes to resign on his own volition from office before the expiry of his term due to any reason, he may do so, after submitting his resignation in writing to the President. 332. If the position of a member of the Constitutional Tribunal of the Union is vacant for any reason, the President may appoint a new member of the Constitutional Tribunal of the Union in accord with the provisions under the Constitution. Qualifications of the Member of the Constitutional Tribunal of the Union 333. The President, the Speaker of the Pyithu Hluttaw and the Speaker of the Amyotha Hluttaw shall select from among the Hluttaw representatives or among those who are not Hluttaw representatives with three members each who has the following qualifications : (a) person who has attained the age of 50 years; (b) person who has qualifications, with the exception of the age limit, prescribed in Section 120 for Pyithu Hluttaw representatives;