IDRIE is an active engine: it converts the measurable environmental and infrastructure load of a property into a transparent annual invoice. Folio-Pin ingests the municipality's metering data, runs the load analysis, and issues the invoices — the municipality purchases, owns, and operates the underground and fleet-mounted metering hardware; Folio-Pin does not supply or install it. Coverage depends on what a municipality already has in the field. Larger cities like Boston already run this equipment across their utility, water, and public works fleets, so onboarding is mainly a data connection. Smaller towns like Harwich, MA typically need to buy only two or three mobile units, which can scan the entire town's infrastructure in about a month.