(A) A charge that an unfair labor practice has been or is being committed may be filed by any person with standing. To have standing, the charging party must possess a direct interest, relevant knowledge of the alleged harm, and a right to be protected. Such charge shall be filed with the board within ninety days after the alleged unfair labor practice was committed. If the charging party is prevented from filing a charge by reason of service in the armed forces, the charge shall be filed no later than ninety days after the day of his or her discharge.
(B) A charge that an unfair labor practice has been or is being committed shall be in writing and signed by the charging party or the charging party's representative and shall contain the following:
(1) The name, affiliation, if any, address, and county of the charging party and the title, name, and address of any representative filing the charge;
(2) The name, affiliation, if any, address, and county of the charged party;
(3) A clear and concise statement of the facts constituting the alleged unfair labor practice;
(4) A brief statement of any other information relevant to the charge; and
(5) Proof of service pursuant to paragraph (B) of rule 4117-1-02 of the Administrative Code. An unfair labor practice charge without proof of service shall not be accepted for filing.