# Federal Register Pipeline & Hazmat Regulatory Changes Feed

> Federal Register Pipeline & Hazmat Regulatory Changes Feed is a paid API for AI agents from oracles-production.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns Federal Register final and proposed rules for pipelines and hazardous-materials transport since a given timestamp, each scored 1-10 for compliance impact with effective dates and source links.

## Facts

- Endpoint: GET https://oracles-production.up.railway.app/v1/reg-pipeline-hazmat/changes
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/federal-register-pipeline-hazmat-regulatory-changes-feed-ebe93e32
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s-V2VIAWfeIhPoJoOEaEw

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability federal-register-pipeline-hazmat-regulatory-changes-feed-ebe93e32
```

Example prompt: Pull all pipeline and hazmat transport regulatory changes from the Federal Register since January 1, 2025, and only show me ones with a compliance impact score of at least 7.

## When to prefer this

Use this endpoint when you need machine-readable, compliance-impact-scored Federal Register regulatory changes specifically scoped to pipeline safety and hazardous materials transportation. Prefer it over general Federal Register searches when you need automatic significance scoring, effective dates, and primary-source URLs in a single structured response suitable for compliance monitoring workflows.

## Known failure modes

- Invalid or missing 'since' parameter format returns a 400 error
- min_significance or limit out of allowed range (1-10, 1-500) returns validation error
- No matching changes in the requested window returns count:0 with empty changes array
- Upstream Federal Register API unavailability may cause 503 or stale data
- Payment not provided or rejected returns 402 Payment Required

## How this service works

Federal Register final & proposed rules affecting pipelines & hazardous-materials transport (Pipeline And Hazardous Materials Safety Administration) since a timestamp — covering pipeline, hazardous material, hazmat, gas transmission, liquefied — each scored 1-10 for compliance impact, with effective dates and primary-source links.

## Output

A JSON object containing a count of matching changes and an array of regulatory change records, each with a title, type (final/proposed rule), plain-language summary, compliance significance score (1-10), effective date, detected-at timestamp, entity ID, and a direct link to the primary Federal Register source for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 500,
       "minimum": 1
      },
      "since": {
       "type": "string",
       "format": "date-time",
       "description": "Only changes detected after this ISO-8601 instant"
      },
      "min_significance": {
       "type": "integer",
       "maximum": 10,
       "minimum": 1,
       "description": "Keep only changes scored at least this"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "count": {
       "type": "integer"
      },
      "source": {
       "type": "string"
      },
      "changes": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "type": {
          "type": "string"
         },
         "title": {
          "type": "string"
         },
         "detail": {
          "type": "object"
         },
         "summary": {
          "type": "string"
         },
         "entityId": {
          "type": "string"
         },
         "sourceUrl": {
          "type": [
           "string",
           "null"
          ],
          "description": "Primary-source link for verification"
         },
         "detectedAt": {
          "type": "string",
          "format": "date-time"
         },
         "significance": {
          "type": "integer",
          "maximum": 10,
          "minimum": 1
         },
         "effectiveDate": {
          "type": [
           "string",
           "null"
          ]
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/federal-register-pipeline-hazmat-regulatory-changes-feed-ebe93e32/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from oracles-production.up.railway.app](https://www.zero.xyz/host/oracles-production.up.railway.app/llms.txt)