(1) Creation of accounts.

(a) After ecology receives the required disclosures of corporate association and complete documents for the certification and designation of the primary and alternate account representatives, ecology will set up two accounts for each covered entity and two accounts for each opt-in entity:

(i) A compliance account through which compliance instruments are transferred to ecology for retirement. Compliance instruments in compliance accounts may not be sold, transferred, traded, or otherwise provided to another account or party.

(ii) A holding account for compliance instruments that may be bought, sold, transferred to another registered entity, or traded.

(b) For each electric utility and each natural gas utility registering in the program, ecology will also set up a limited use holding account. Electric utilities and natural gas utilities must transfer their no cost allowances to the limited use holding account in order to consign them to auction for the benefit of ratepayers as described in WAC 173-446-300 (2)(b).

(c) After ecology receives the required disclosures of corporate association and complete documents for the certification and designation of the primary and alternate account representatives, ecology will set up a holding account for each general market participant.

(2) Holding limits.

(a) Except as provided in (c) and (d) of this subsection, the maximum total number of allowances of the current vintage, prior vintage, or that have no vintage, that a registered entity may hold in its holding account, its compliance account, or combination of both, is determined by the following:

(b) Except as provided in (c) and (d) of this subsection, the maximum number of allowances of each vintage subsequent to the current year that a registered entity may hold in its holding account, its compliance account, or a combination of both, is determined by the following:

(c) The holding limits set in (a) and (b) of this subsection do not apply to the allowances held in the compliance account of a covered entity or opt-in entity that are needed to cover estimated GHG emissions for the current year or emissions for preceding years.

(d) The holding limits set in (a) and (b) of this subsection do not apply to allowances held in a limited use holding account that are to be consigned to auction.

(e) In addition to the holding limits described above, a general market participant may not in aggregate hold more than 10 percent of the total number of allowances of any vintage year.

(f) A registered entity that reaches or exceeds one-half of its holding limit must, within 10 business days of a request from ecology, explain its strategy and the reason for holding the allowances.

(g) When its holding limit is exceeded, a registered entity must, within five business days after the limit is exceeded, divest itself of the excess emission allowances, transfer into its compliance account the number of allowances needed to cover its emissions for the current year or preceding years, or, in the case of consolidated entities, amend the distribution of the overall holding limit to become compliant. If a registered entity fails to comply with this requirement, ecology will withdraw the excess allowances and make them available for auction.

(3) Ecology will post anonymized information about the contents of each holding account including, but not limited to, the number of allowances in the account, on ecology's cap and invest public website. Ecology will also maintain on its website a public roster of all covered entities, opt-in entities, and general market participants.

(4) When the ownership of a registered entity changes, the following information must be submitted to ecology within 30 calendar days of finalization of the ownership change:

(a) A description of the merger or acquisition and the effective date of the change of ownership, including whether the merger or acquisition is the purchase of a registered entity or entities from another party or the purchase of a party that owns a registered entity or entities;

(b) Both the legal and operating names and the tracking system IDs of the parties owning the registered entity or entities prior to the change in ownership;

(c) The legal name, operating name, and the tracking system ID of the purchasing party, if any;

(d) Written direction regarding whether the purchased registered entity or entities will be added to a consolidated entity account or whether the purchased registered entity or entities will be associated with a party that will opt out of account consolidation;

(e) Documentation with signatures (original or electronic) by a director or officer from the seller of the registered entity or entities, the registered entity or entities, and from the purchasing party, notifying ecology of the change of ownership;

(f) Any changes to disclosures or new disclosures required under WAC 173-446-110, 173-446-120, and 173-446-130;

(g) Direction regarding the disposition of compliance instruments that must be transferred by ecology to the purchasing party. Compliance instruments can be transferred. Any administrative transfers required may be requested as a one-time occurrence scheduled to occur within five business days after the facility or facilities are transferred in the tracking system to the purchasing party;

(h) It is the responsibility of the parties participating in the change of ownership to transfer any compliance instruments from tracking system holding accounts that they control prior to closure. Prior to closure, ecology may transfer compliance instruments from a registered entity's compliance account to its holding account upon request by the registered entity. If a party no longer owns or operates any active registered entity in its tracking system account due to a change in ownership, then that party may exit the program and close its tracking system accounts within five business days after the registered entity or entities are transferred in the tracking system to the purchasing party.