Chap. 116. thirty days following the receipt by said board of such certificate, or such appearance, as the case may be. No voter enrolled as a member of one political party shall be allowed to receive the ballot of any other political party, upon a claim by him of erroneous enrolment, except upon a certificate of such error from the registrars, which shall be presented to the presiding officer of the primary and shall be attached to and considered a part of the voting list and returned and preserved therewith; but the political party enrolment of a voter shall not preclude him from receiving at a city or town primary the ballot of any municipal party, though in no one primary shall he receive more than one party ballot. r At primaries the city or town clerk shall make available within the polling place certificates to enable a voter to establish, change or cancel his party enrolment, substantially as follows: Date ................... Name........................ Address................. (print) I hereby request that my enrolment be (changed) as.........., (cancelled) (established) in accordance with section thirty-eight of chapter fifty-three of the General Laws. Signed under the penalties of perjury: Signature On the same day as he casts his ballot, the voter may transmit the certificate to the city or town clerk, who shall transmit them as soon as possible after the primary to the board of registrars, to be retained in their custody. The party enrolment of each voter shall be recorded in the current annual register of voters and whenever a voter shall establish, cancel or change his enrolment it shall likewise be so recorded. * Said board shall forthwith notify each voter transmitting any such certificate that the same has been received and that his enrolment has been established, changed or cancelled in accordance with his request or that said certificate is void and of no effect, if such be the case. Approved March 28, 1972. Chap. 116. An Act authorizing savings banks to act as trustees UNDER CERTAIN RETIREMENT PLANS. Be it enacted, etc., as follows: Chapter 168 of the General Laws is hereby amended by inserting after section G6A, inserted by section 2 of chapter 92 of the acts of 1971, the following section: — Section 66B. Such corporation may act as trustee under a retirement plan which, in the judgement of such corporation at the time appointment as such trustee is accepted, is established pursuant to the provisions of Public Law 87-792, entitled "Self-Employed Individuals Tax / Acts, 1972. —Chaps. 117, 118, 119. 57 Retirement Act of 1962", as amended, if the provisions of such plan have been approved by the commissioner and permit any of the funds of such trust to be invested in savings bank deposits. No funds held by such corporation as such trustee shall be invested otherwise than in savings bank deposits or properly qualified life insurance retirement income policies, or any combination thereof, as each such plan may prescribe or permit. " Approved March 28, 1972.