1. This agreement modifies the applicable Crew Consist and Modified Agreements identified in the preamble hereof, and in any case of conflict, the terms and intent of this agreement shall prevail.

2. This agreement shall become effective December 5, 1991, and will be implemented, pursuant to Article VII on December 18, 1991.

3. The parties to this agreement shall not serve nor progress, prior to the attrition of all protected employes, any notice or proposal for changing the specific provisions of this agreement governing pure attrition; protected employes, car limits and train length (which have been eliminated by Crew Consist Modification Agreements), special allowance payment to reduced crew members, reserve boards and reserve board payments, employe productivity payments and administration thereof. This section will not bar the parties from making changes in the above provisions by mutual agreement.

4. All employes who established a seniority date prior to the effective date of the applicable Modified Crew Consist Agreements continue to be protected employes under provisions of those respective Modified Crew Consist Agreements.

5. All Employes hired prior to the effective date of this agreement are protected employes under the terms of this agreement.

Signed at Omaha, Nebraska this 5th day of December, 1991. FOR THE ORGANIZATION: FOR THE CARRIER:

D. L. Smith

General Chairman UTU C

L. A. Lambert

Director - Labor Relations

R. E. Carter

General Chairman UTU T

APPROVED:

R. D. Meredith

Director - Employe Relations

and Planning