(1) For the purpose of RCW 42.17A.055,"electronic filing system" means the specific PDC-provided application or functionality necessary to file a specific report and does not include software provided by third parties;

(2) For the purpose of RCW 42.17A.055, "inoperable" means the electronic filing system used by the filer is unable to prepare or receive the required report except as provided in subsection (3) of this section;

(3) The electronic filing system is not considered inoperable during regular maintenance periods lasting less than thirty minutes between the hours of 11:00 p.m. and 5:00 a.m. Pacific Time or unscheduled events lasting less than fifteen minutes in any twenty-four-hour period;

(4) The PDC will provide notification for all periods of inoperability on its website and will provide an option for individuals to also be notified by electronic notification upon request.