Subsection 40D-4.331(4), F.A.C., allows applicants seeking a modification to extend the permit duration of a construction permit or conceptual permit to utilize the “Environmental Resource Permit Modification Short Form,” Form No. LEG-R.013.02 (8/11) (Short Form). The proposed rule change will allow applicants seeking to extend the duration of a Site Conditions Assessment Permit to utilize the Short Form. This change reduces the costs for and regulatory burdens on a permittee seeking to extend an existing Site Conditions Assessment Permit, and promotes efficiency and consistency in the way the District processes applications seeking extension. Historically, Subsection 40D-4.331(4), F.A.C., restricted the filing of applications for permit modification for extension to 180 days prior to the permit expiration date. In a rulemaking finalized February 9, 2012, this restriction was removed from the rule in an effort to streamline District regulations and ease the regulatory restrictions on applicants. However, it has since been determined that the removal of the restriction created uncertainty as to the date from which an extension was calculated. The proposed rule changes will clarify this uncertainty by specifying that the duration of an extension will be calculated from the date that it is granted. Lastly, several areas within Subsection 40D-4.331(4), F.A.C., were identified where grammatical and organizational changes are necessary in order to clean up the language of the subsection. This rulemaking will adopt the grammatical and organizational changes, which will result in greater clarity in the understanding and application of the rule.