OPERATOR TESTING.

SEC. 106. OPERATOR TESTING. Section 3(a)(1) of the Natural Gas Pipeline Safety Act of 1968 (49 U.S.C. App. 1672(a)(1) is further amended— (1) in the third sentence by striking “may” and inserting “shall”; and (2) by inserting after the third sentence the following new sentence: “Such certification may, as the Secretary considers appropriate, be performed by the operator. Such testing and certification shall address the ability to recognize and appropriately react to abnormal operating conditions which may indicate a dangerous situation or a condition exceeding design limits.”