E-ZPass
toll company
E-ZPass Interagency Group (E-ZPass Group trade name and E-ZPass product brand) is an electronic toll collection system used on toll roads, toll bridges, and toll tunnels in the eastern half of the United States. The group itself is composed of several states' member agencies, which share the same technology and allow travelers to use the same transponder on toll facilities throughout the network. It was created in 1987, since which time several states' compatible systems have rebranded to E-ZPass. Negotiations for nationwide interoperability are ongoing.
Functionality
Technology
E-ZPass tags are active RFID transponders, historically made by Kapsch TrafficCom (formerly Mark IV Industries Corp—IVHS Division) under a competitively bid contract. They communicate with reader equipment built into lane-based or open-road toll collection lanes by transmitting a unique radio signature. The most common type of tag is an internal tag that can be mounted on the inside of the vehicle's windshield in proximity to the rear-view mirror. Though toll agencies advise adhesion to the windshield with mounting strips (usually 3M's Scotch brand "Dual Lock" fasteners), third-party options using trays with suction cups to adhere a pass to a windshield temporarily if used in multiple vehicles are available. Some vehicles have windshields that block RF signals; for those vehicles, historical vehicles, and customers who have aesthetic concerns, an external tag is offered, typically designed to attach to the vehicle's front license plate mounting points.
Although a tag can be used with a motorcycle, usually no official instructions are given for mounting, due to the numerous variations between bike designs and the small area of a motorcycle windshield which could prove a hindrance if the transponder is attached following automobile instructions.
The public source identifies “E-ZPass” as toll company. This brief keeps that definition visible, then builds a research path around E-ZPass, toll and company.
Why this record matters
A short description can identify a subject without explaining its stakes. For “E-ZPass”, the useful work is to connect “toll company” to the records capable of establishing context and consequence.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q800074. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1987.
Institutional narratives can privilege the records that survived while minimizing voices that were never formally collected. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
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Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “E-ZPass”, its source revision and the description used here.
- Expand the search: follow E-ZPass primary sources, E-ZPass archive and E-ZPass research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “E-ZPass” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.