Insofar as applicable to employees represented by the United Transportation Union, the Vacation Agreement dated April 29, 19^9, as amended, is further amended effective January 1, 1979, by substituting the following Section 1(c) and 1(d) for the corresponding provisions contained in Section 1 of Article III of the Agreement of January 27, 1972:
Beginning with the effective date of the provisions of Article 3 of Agreement “A” dated September 25, 1950, May 25, 1951 or May 23, 1952, on an individual carrier, but not earlier than the year I960, in the application of this Section 1(c) each basic day in yard service performed by a yard service employee or by an employee having interchangeable road and yard rights shall be computed as 1.6 days, and each basic day in all other services shall be computed as 1.3 days, for purposes of determining qualifications for vacations. (This is the equivalent of 100 qualifying days in a calendar year in yard service and 120 qualifying days in a calendar year in road service.) (See NOTE below.) ‘
Beginning with the year I960 on all other carriers, in the application of this Section l(c) each basic day in all classes of service shall be computed as 1.3 days for purposes of determining qualifications for vacation. (This is the equivalent of 120 qualifying days.) (See NOTE below.)
Beginning with the effective date of the provisions of Article 3 of Agreement “A” dated September 25, 1950, May 25, 1951 or May 23, 1952, on an individual carrier, but not earlier than the year I960, in the application of this Section l(d) each basic day in yard service performed by a yard service employee or by an employee having interchangeable road and yard rights shall be computed as 1.6 days, and each basic day in all other services shall be computed as 1.3 days, for purposes of determining qualifications for vacations. (This is the equivalent of 100 qualifying days in a calendar year in yard service and 120 qualifying days in a calendar year in road service.) (See NOTE below.)
Beginning with the year I960 on all other carriers, in the application of this Section l(d) each basic day in all classes of service shall be computed as 1.3 days for purposes of determining qualifications for vacation. (This is the equivalent of 120 qualifying days.) (See NOTE below.)
(The NOTE referred to in Sections 1(c) and 1 d) above reads as follows:
“NOTE: – In the application of Section 1(a), (b), (c), (d) and (e), qualifying years accumulated, also qualifying requirements for years accumulated, prior to the effective date of the respective provisions hereof, for extended vacations shall not be changed.”)