"Commission" means the Washington grain commission.

"Disclosure" means inspection or copying.

"Person" means any individual, firm, corporation, limited liability company, trust, association, partnership, society or any other organization of individuals, or any unit or agency of local or state government.

"Public records" includes any writing containing information relating to the conduct of government or the performance of any governmental or proprietary function prepared, owned, used, or retained by the commission regardless of physical form or characteristics.