EX-4.1
from S-8
68 pages
Southwest Gas Corporation Employees' Investment Plan Amended and Restated -- Effective January 1, 1989 Amended and Restated -- Effective December 1, 1994 Amended and Restated -- Effective July 1, 1996 Amended and Restated -- Effective October 1, 2001 Amended and Restated – Effective January 1, 2010 Amended and Restated – Effective January 1, 2015 Introduction
12/34/56