{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/astm-international/refs/heads/main/json-schema/astm-technical-committee-schema.json",
  "title": "ASTM Technical Committee",
  "description": "Representation of an ASTM technical committee or subcommittee: the volunteer body that owns and develops a defined slice of the ASTM standards portfolio.",
  "type": "object",
  "required": ["designation", "name", "letterPrefix"],
  "properties": {
    "designation": {
      "type": "string",
      "description": "Committee or subcommittee designation. Top-level committees use Letter+Number (e.g., 'F42'); subcommittees append a dotted segment (e.g., 'F42.04').",
      "pattern": "^[A-GJ][0-9]{1,4}([.][0-9]{1,3})?$",
      "examples": ["A01", "C09", "D20", "E08", "F42", "F42.04", "J01"]
    },
    "letterPrefix": {
      "type": "string",
      "description": "Committee category letter.",
      "enum": ["A", "B", "C", "D", "E", "F", "G", "J"]
    },
    "name": {
      "type": "string",
      "description": "Full committee or subcommittee name."
    },
    "category": {
      "type": "string",
      "description": "Plain-language category derived from the letter prefix.",
      "enum": [
        "Ferrous Metals And Products",
        "Nonferrous Metals And Products",
        "Cementitious Ceramic Concrete And Masonry Materials",
        "Miscellaneous Materials And Products",
        "Miscellaneous Subjects",
        "End-Use Materials And Products",
        "Corrosion Deterioration Weathering Durability And Degradation",
        "Joint Committees"
      ]
    },
    "scope": {
      "type": "string",
      "description": "Scope statement describing the committee's chartered subject area."
    },
    "parentCommittee": {
      "type": "string",
      "description": "Parent committee designation, for subcommittees.",
      "pattern": "^[A-GJ][0-9]{1,4}$"
    },
    "subcommittees": {
      "type": "array",
      "description": "Designations of direct subcommittees.",
      "items": {
        "type": "string",
        "pattern": "^[A-GJ][0-9]{1,4}[.][0-9]{1,3}$"
      }
    },
    "memberCount": {
      "type": "integer",
      "description": "Number of volunteer members.",
      "minimum": 0
    },
    "standardsCount": {
      "type": "integer",
      "description": "Number of active standards owned by the committee.",
      "minimum": 0
    },
    "established": {
      "type": "integer",
      "description": "Year the committee was established.",
      "minimum": 1898
    },
    "chairperson": {
      "type": "string",
      "description": "Current chair of the committee."
    },
    "staffManager": {
      "type": "string",
      "description": "Assigned ASTM staff manager."
    },
    "meetingFrequency": {
      "type": "string",
      "description": "Frequency of committee meetings.",
      "examples": ["Semiannual", "Annual"]
    },
    "homeUrl": {
      "type": "string",
      "format": "uri",
      "description": "Public landing page for the committee on astm.org."
    }
  },
  "additionalProperties": false
}