Patio Enclosure Ledger Board Fastening Standard

What is the standard for the number of fasteners (bolts) for the ledger board on a patio enclosure? I see the standard for wooden decks’ ledger boards but I could not find it for patio enclosures. Thank you in advance for any answers!

DCA 6 - Prescriptive Residential Wood Deck Construction Guide

Scroll down to the 1st “Design for Code Acceptance” and click download full PDF.