The hard part of electrification is not the car — it is the wire, and whether it works when you plug in. The federal government wrote that concern into binding standards through the National Electric Vehicle Infrastructure (NEVI) program, codified at 23 CFR Part 680. Any charging station built with NEVI funding must meet these minimum standards, and they cover the three things a driver actually cares about: how many cars can charge at once, what connector the station offers, and how often it is working.

Start with capacity and connectors. Part 680 sets a floor for the number of ports and the connector type, and it names CCS explicitly as the required standard for DC fast charging.

"All charging connectors must meet applicable industry standards. Each DCFC charging port must be capable of charging any CCS-compliant vehicle and each DCFC charging port must have at least one permanently attached CCS Type 1 connector."— 23 CFR 680.106, source

Four ports, CCS, and the uptime floor

The number-of-ports requirement is specific. Under 23 CFR 680.106, a DC fast-charge station located along and designed to serve a designated alternative-fuel corridor must have at least four network-connected DCFC charging ports and be capable of simultaneously charging at least four EVs. In other locations, a station must have at least four network-connected ports — DCFC, AC Level 2, or a combination — again capable of charging four vehicles at once. The rule pairs that count with the connector mandate quoted above: every DC fast-charge port must be able to charge any CCS-compliant vehicle and carry at least one permanently attached CCS Type 1 connector. CCS, the Combined Charging System, is the connector standard the federal rule built around; a station may add other connectors, but the CCS capability is the non-negotiable baseline for federally funded DC fast charging.

The requirement most directly aimed at the real-world failure mode — chargers that exist but do not work — is the uptime standard in 23 CFR 680.116. The rule states plainly that recipients "must ensure that each charging port has an average annual uptime of greater than 97%." That single number turns reliability from a marketing claim into a fundable condition: a port that is down more than roughly 11 days a year on average falls below the federal floor. The same section governs how price is shown — the charging price must be displayed before a session starts, must be based on the price of electricity in dollars per kilowatt-hour, and the price at the start of a session cannot change during it.

Why these standards exist, and what they bound

The standards read as a direct response to the charging network's worst habits: too few stalls, incompatible plugs, opaque pricing, and chargers that are dark when you arrive. By requiring four simultaneous-charge ports, Part 680 attacks queueing; by mandating CCS compatibility, it attacks the connector fragmentation that stranded early EV drivers; by setting a 97% uptime floor, it attacks the reliability gap that uptime studies have repeatedly flagged; and by fixing how price is communicated, it attacks the per-session pricing confusion that made charging costs hard to compare. Each is a condition on federal money, which is the mechanism that gives them teeth — a network that wants NEVI funding has to meet them.

Two precise points keep the picture accurate. First, these are minimum standards for federally funded infrastructure, not a universal mandate on every private charger in the country — a privately financed station is free to differ, though many operators align to the same specs to stay interoperable. Second, the rule's connector requirement names CCS as the required DC fast-charge standard; the separate, market-driven shift toward the North American Charging Standard (NACS, standardized as SAE J3400) is happening alongside this rule, and the federal text accommodates additional connectors so long as the CCS capability is present. The authoritative source for what a federally funded charging station must do is 23 CFR Part 680, and its requirements — four ports, CCS compatibility, transparent per-kWh pricing, and average annual uptime above 97% — are written as binding text, not aspiration.

How the rule defines uptime and power

The uptime figure is only meaningful because the rule also defines what "up" means. Section 680.116 does not leave reliability to a vendor's own accounting; it specifies the conditions under which a charging port is considered up versus down and requires the 97% figure to be an average annual measure per port, not a fleet-wide average that a few high-traffic stations could prop up. That granularity is what makes the standard bite at the level a driver experiences — the specific stall in front of them — rather than at a network's flattering aggregate. The rule pairs that with the requirement that ports be network-connected, which is the precondition for measuring uptime at all: a port that cannot report its status cannot be held to a status floor.

On power, the corridor requirement is built around DC fast charging for a reason: the program's purpose is to enable long-distance travel, and the rule's expectation for designated corridor stations centers on DCFC ports capable of meaningful charging speed, with the four-simultaneous-vehicle requirement ensuring a station can serve more than one traveler at a time. The pricing rules in 680.116 close the loop on the consumer experience — the price must be shown before the session begins, expressed in dollars per kilowatt-hour, and held constant for the duration of a session — so that comparing the cost of charging becomes as straightforward as comparing the price of fuel. Taken together, the connector mandate, the port count, the uptime floor, and the pricing rules describe a charging station the federal government considers minimally adequate to support electrification, and the document that defines each of those minimums is 23 CFR Part 680.