|(a) If reports acceptable to the executive director that are submitted under this subchapter demonstrate that no further action is required to protect human health and the environment, the executive director shall certify such facts by issuing the person a final certificate of completion. If the applicant is satisfactorily maintaining the physical controls, remediation systems, or post-response action care, or if non-permanent institutional controls are utilized pursuant to an agreement, the executive director shall certify such facts by issuing the applicant a conditional certificate of completion. The executive director may authorize an applicant to conduct a phased response action only when, in the executive director's evaluation, the schedule is reasonable. (b) For partial response actions, the certificate of completion shall pertain only to the partial response action area and shall include a legal description of that area. (c) For sites approved prior to the effective date of this rule, agency will issue a certificate of completion for sites only if currently appropriate response actions for all contaminants within the area described in the certificate of completion have been completed. (d) The executive director may allow the applicant to file the copy of the certificate of completion into the site deed record on the executive director's behalf if the applicant provides subsequent documentation of the filing. The applicant must file the copy of the certificate of completion prior to the sale or transfer of the property, but not later than 90 days after the date of issuance of the certificate of completion. (e) The executive director may allow the applicant to file a statement in the deed records stating that the certificate of completion supersedes prior deed certification requirements.