For marine employees:

(1) The "window" period specified in WAC 391-25-030(1) shall be computed as not more than one hundred twenty nor less than ninety days prior to the stated expiration date of the collective bargaining agreement.

(2) The "protected" period specified in WAC 391-25-030 (1)(c) shall be computed as ninety days.

(3) The duration of any collective bargaining agreement negotiated under chapter 47.64 RCW shall not exceed one fiscal biennium.