; and (B) certification of distributed energy system installers. (2) Activities The Board shall— (A) develop and maintain a streamlined permitting process, such as a national online permitting system and technology platform for expediting, standardizing, and streamlining permitting, that authorities having jurisdiction may use, at the discretion of those authorities, to receive, review, and approve permit applications relating to qualifying distributed energy systems; (B) establish a model expedited permit-to-build protocol for qualifying distributed energy systems; (C) provide technical assistance to authorities having jurisdiction on using and adopting— (i) the streamlined permitting process described in subparagraph (A); and (ii) the model expedited permit-to-build protocol described in subparagraph (B); (D) (i) investigate the development of voluntary national certifications for distributed energy system installers and qualifying distributed energy systems; and (ii) if the Board determines that the national certifications would expedite and streamline the permitting and inspection process, develop the voluntary national certifications; (E) develop and maintain a voluntary national inspection protocol integrated with the national online permitting system described in subparagraphs (A) and (B) and related tools to expedite, standardize, and streamline the inspection of qualifying distributed energy systems, including— (i) by investigating the potential for using remote inspections; and (ii) by investigating the potential for sample-based inspection for distributed energy system installers with a demonstrated track record of high-quality work