Chesapeake and Ohio Canal National Historical Park Commission Extension Act

Sectors are deterministic matches from official Congress.gov data and cached bill text. They are source-derived signals, not conclusions about intent or economic effect.

Evidence matches count official fields, normalized subjects, cached text snippets, or extracted entities that matched the sector rules.

Impact is a bill-level rollup used for sorting and filtering. It is not an economic impact estimate.

Confidence is the strongest individual match score behind that sector.

Evidence snippets show why a sector matched and can repeat when Congress.gov repeats the same phrase across official fields.

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Lobbying context uses source-attributed LDA.gov records that appear related to this bill through bill references in public lobbying activity descriptions. It is research context only, not proof of influence, causation, endorsement, lobbying effectiveness, or legislative intent.