Form 1 NATIONAL RAILROAD ADJUSTMENT BOARD Award No. 28203
 THIRD DIVISION Docket No. SG-28297
 89-3-88-3-56
 The Third Division consisted of the regular members and in
 addition Referee George E. Roukis when award was rendered.

 (Brotherhood of Railroad Signalmen PARTIES TO DISPUTE:

STATEMENT OF CLAIM: "Claim on behalf of the General Committee of the
 Brotherhood of Railroad Signalmen on the Indiana

On behalf of Signal Maintainer M. R. Lewman, headquartered at Blue Island Hump Yards, that:

 (a) Carrier violated the parties' Signal Agreement, as amended, particularly Rules 4-G-1, 4-A-3(b) a 1986, Claimant had his position changed from a third shift position to a first shift position, which resulted in a change of his starting time and assigned rest days during the period November 3 through November 14, 1986.

 (b) Carrier should now be required to allow Signal Maintainer M. R. Lewman the difference between his straight time rate of pay of $13.45 per hour and overtime rate of pay of $20.175 per hour for the period referred to above, which represents 72 hours X 6.725 or $484.20." General Chairman's file 86-55IHB; Carrier file S-87-2
FINDINGS:

 The Third Division of the Adjustment Board upon the whole record and all the evidence, finds that:

 The carrier or carriers and the employe or employes involved in this dispute are respectively carrier and employes within the meaning of the Railway Labor Act as approved June 21, 1934.

 This Division of the Adjustment Board has jurisdiction over the dispute involved herein.

The basic facts of this case are set forth as follows. Claimant was initially employed as a Signal Maintainer at Carrier's Blue Island Hump. His assigned hours were 7:00 AM - 3:00 PM with Wednesday and Thursday as his rest days. On October 8, 1986, Carrier advertised a new Signal Maintainer position identifed as Position 463 and pursuant to the Schedule Agreement issued Bulletin #/18. Position 463
- r-
 Form 1
 Page 2

 Award No. 28203
 Docket No. SG-28297
 89-3-86-3-56

 11:00 PM - 7:00 AM. Sunday and Monday were rest days. On October 27, 1986, Carrier issued Bulletin #18A, wherein it awarded Position 463 to Claimant, effective November 4, 198 Bulletin ##18B, designated correction notice, wherein it noted that Bulletin ##18A should have read "Awarded to M. R. Lewman effective November 3, 1986 with two (2) weeks of Temporary duty as follows:

 Assigned Hours
 Rest days
 Headquarters

 7:00 AM to 3:00 PM
 Friday and Saturday
 Argo Yard Office"

 The purpose of the correction was so that Claimant could familiarize himself with the territory and responsibilities of the night maintainer assignment. For the two (2) weeks period, Claimant performed the duties of the temporary assignment and was then apprized by Bulletin ##18C, dated November 12, 1986, that he was to report to his permanent position, (Position 463) effective, November 14, 1986.

 The Organization later filed a Claim on December 6, 1986, wherein it charged that Carrier violated Rule 4-G-1 when it (Carrier) changed the shift time of the awarded position. In other words, the Organization asserted that temporarily modifying the shift time of Position 463 was a violation of Rule 4-G-1.

 By letter dated January 2, 1987, Carrier denied the Claim, arguing that Claimant acquiesced to the shift change when he elected to retain his position rather than exercise displacement rights in accordance with Rule 2-A-4. It was Carrier's position that it made no change in the shift or other advertised working conditions in Position 463 after the date the position was established and after the date it became Claimant's regular position on the effective date of the Award (November 3, 1986.) In essence, Carrier contended that Rule 4-G-1 has no applicability to situations where a position has not come into existence and where an employee has not occupied the position.

 As the Claim progressed, the Organization also asserted that Carrier violated Rules 4-A-3(b) and 4-B-4(b). For ready reference, the Rules cited by parties are reproduced as follows:

 "4-G-1. An employee changed by direction of the management from his regular position to another at the time and one-half rate for work performed until returned to his regular position.

 4-A-3. (b) The starting time of employees shall not be
 changed without first giving the employees affected five
 (5) calendar days notice with copy to Local Chairman.
 The starting time shall not be temporarily changed for the
 purpose of avoiding overtime.

 4-B-4. (b) Employees will not be required to suspend work
 during regular working hours to absorb overtime.
 Form 1 Award No. 28203
 Page 3 Docket No. SG-28297
 89-3-86-3-56
 2-A-4. An employee may elect to retain his position or
 within ten (10) calendar days exercise displacement rights
 if changes occur in any of the following conditions of his
 position: (a) Assigned rest day or days; (d) Assigned
 tour of duty . . . (Emphasis supplied.)

 In considering this case, the rules cited by the parties are clear and readily applicable to specific relevant situations. If an employee for example, is directed by management to work another shift, he is entitled to the compensatory benefits of Rule 4-A-1. Similarly, an employee may elect his alternative options under Rule 2-A-4, if specified changes occur in the conditions of his position.<
In the case herein, the defining question is what position did Claimant actually hold on Novembe assignment, effective that date, he relinquished his Signal Maintainer's position (#465) at Blue Isl work another shift. In essence, he began a new position on November 3, 1986. Since the hours of the new position (#463) were scheduled or advertised by Bulletin #18, to run from indication that prior newly established positions were first filled by short term temporary assignments, the Board of necessity, must conclude that Rule 4-A-1 was violated when Claimant worked the temporary hours of the new position. It was the new posi of his former position or another position that he was assigned to work. For these reasons, we must sustain the Claim.




                              By Order of Third Division


Attest:
        Nancy J. D~c~- Executive Secretary


Dated at Chicago, Illinois, this 20th day of November 1989.