www.buildingenclosureonline.com/articles/90971-spri-announces-plans-to-canvass-revised-ansi-spri-vf-1-standard

SPRI Announces Plans to Canvass Revised ANSI/SPRI VF-1 Standard
August 15, 2022
SPRI, the association representing sheet membrane and component suppliers to the commercial roofing industry, announced that it is reviewing ANSI/SPRI VF-1 External Fire Design Standard for Vegetative Roofs and plans to update and re-canvass the document for re-affirmation as an American National Standard in the coming months.
VF-1 is being re-canvassed as required by the American National Standards Institute’s policy that all National Standards must be re-evaluated every five years. Interested party may participate in the canvass process by e-mailing SPRI’s headquarters at info@spri.org or by calling 781-647-7026.