(b) Any changes which the deponent desires to make shall be entered on the face of the deposition and shall state the reasons for such changes. The deposition shall then be signed by the deponent, unless the deponent waives the right to sign, cannot be found, or is unable or refuses to sign. The deponent must sign the deposition within 30 days of its submission to him or her, or within such shorter time period as the Commission may designate. Whenever a deponent is required to sign in less than ten days, the Commission shall notify the deponent of the reasons for such shorter time period. If the deponent does not sign the deposition within the prescribed time period, the Commission designee shall sign it and state on the record the fact of the waiver of the right to sign or of the illness or absence of the deponent, or the deponent's inability or refusal to sign, together with the reason if any is given. The deposition may be used in any administrative proceeding, as provided by these rules, or any other proceeding, as allowed by applicable rules.