# MTBNSF

Montana rail-corridor environmental observations
MTBNSF is an independent public-interest project. It does not represent or speak for a railroad, government agency, tribal government, university, or advocacy organization.
Scope: reviewed Phase 1 public pages only; no live community intake or private, held, account, administrative, dataset, or export surface is published here.
Catalog baseline reviewed: 2026-08-14; privacy disclosure reviewed: 2026-09-15
Publication schema: MTBNSF_SITE/1.0

## Evidence classes

- Official: public agency or provider material with its qualifications preserved.
- Research reviewed: source-bound research with scope and limitations preserved.
- Platform derived: a disclosed calculation, never a direct observation.
- Community originated: a distinct future evidence lane; no intake is active.

## Core claim limits

A page does not establish cause, source identity, liability, a current violation, a shipment origin, an individual train, or a current environmental condition unless an originating source directly supports that exact claim.
Cite the originating source and preserve observation, derived, allegation, denial, settlement, and community labels.

## Approved public links

- About MTBNSF: https://www.mtbnsf.com/about — Scope, independence, and public-use boundaries for MTBNSF.
- Reviewed research: https://www.mtbnsf.com/research — Reviewed research pages with visible source, scope, and reuse limits.
- Energy-system context: https://www.mtbnsf.com/research/energy-system — Reviewed program and research context with visible source and non-inference limits.
- Acid rain evidence guide: https://www.mtbnsf.com/learn/acid-rain — Reviewed, source-bound educational context with visible evidence limits.
- Community observations: https://www.mtbnsf.com/community-observations — The future community-evidence policy and the current no-intake boundary.
- Corrections and retractions: https://www.mtbnsf.com/corrections — The public correction and retraction policy and current no-intake boundary.
- Privacy: https://www.mtbnsf.com/privacy — Aggregate pageview coverage, browser privacy preferences, application data boundaries and hosting logs.
- Terms of use: https://www.mtbnsf.com/terms — Educational-use, source-verification, and decision limits for MTBNSF.