diff --git a/schemas/map.schema.json b/schemas/map.schema.json
new file mode 100644
index 0000000..9ae7271
--- /dev/null
+++ b/schemas/map.schema.json
@@ -0,0 +1,55 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "required": ["repositories", "mapping"],
+  "additionalProperties": false,
+  "properties": {
+    "repositories": {
+      "type": "object",
+      "items": {
+        "type": "object",
+        "patternProperties": {
+          ".+": {
+            "type": "object",
+            "items": {
+              "type": "string",
+              "minimum": 1
+            }
+          }
+        }
+      }
+    },
+    "mapping": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": ["paths", "repositories", "threshold", "terminating"],
+        "properties": {
+          "paths": {
+            "type": "array",
+            "items": {
+              "type": "string",
+              "minLength": 1
+            }
+          },
+          "repositories": {
+            "type": "array",
+            "items": {
+              "type": "string",
+              "minLength": 1
+            }
+          },
+          "threshold": {
+            "type": "integer",
+            "minimum": 1
+          },
+          "terminating": {
+            "type": "boolean"
+          }
+        }
+      }
+    }
+  }
+}
+  
diff --git a/schemas/root.schema.json b/schemas/root.schema.json
new file mode 100644
index 0000000..99368a4
--- /dev/null
+++ b/schemas/root.schema.json
@@ -0,0 +1,190 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "required": ["signatures", "signed"],
+  "additionalProperties": false,
+  "properties": {
+    "signatures": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["keyid", "sig"],
+        "additionalProperties": false,
+        "properties": {
+          "keyid": {
+            "type": "string",
+            "minLength": 64,
+            "maxLength": 64,
+            "pattern": "^[a-f0-9]{64}$"
+          },
+          "sig": {
+            "type": "string",
+            "minLength": 1
+          }
+        }
+      }
+    },
+    "signed": {
+      "type": "object",
+      "required": ["_type", "expires", "keys", "roles", "spec_version", "version"],
+      "additionalProperties": false,
+      "properties": {
+        "_type": {
+          "enum": ["root"]
+        },
+        "consistent_snapshot": {
+          "type": "boolean"
+        },
+        "expires": {
+          "type": "string",
+          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
+        },
+        "keys": {
+          "type": "object",
+          "additionalProperties": false,
+          "patternProperties": {
+            "^[0-9a-f]{64}$": {
+              "type": "object",
+              "required": ["keytype", "keyval", "scheme"],
+              "additionalProperties": true,
+              "properties": {
+                "keytype": {
+                  "enum": ["rsa", "ed25519", "ecdsa-sha2-nistp256"]
+                },
+                "keyval": {
+                  "type": "object",
+                  "required": ["public"],
+                  "additionalProperties": false,
+                  "properties": {
+                    "public": {
+                      "type": "string",
+                      "minLength": 1
+                    }
+                  }
+                },
+                "scheme": {
+                  "enum": ["rsassa-pss-sha256", "ed25519", "ecdsa-sha2-nistp256"]
+                }
+              }
+            }
+          }
+        },
+        "roles": {
+          "type": "object",
+          "required": ["root", "snapshot", "targets", "timestamp"],
+          "additionalProperties": false,
+          "properties": {
+            "mirror": {
+              "type": "object",
+              "required": ["keyids", "threshold"],
+              "additionalProperties": false,
+              "properties": {
+                "keyids": {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "minLength": 64,
+                    "maxLength": 64,
+                    "pattern": "^[a-f0-9]{64}$"
+                  }
+                },
+                "threshold": {
+                  "type": "number",
+                  "minimum": 1
+                }
+              }
+            },
+            "root": {
+              "type": "object",
+              "required": ["keyids", "threshold"],
+              "additionalProperties": false,
+              "properties": {
+                "keyids": {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "minLength": 64,
+                    "maxLength": 64,
+                    "pattern": "^[a-f0-9]{64}$"
+                  }
+                },
+                "threshold": {
+                  "type": "number",
+                  "minimum": 1
+                }
+              }
+            },
+            "snapshot": {
+              "type": "object",
+              "required": ["keyids", "threshold"],
+              "additionalProperties": false,
+              "properties": {
+                "keyids": {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "minLength": 64,
+                    "maxLength": 64,
+                    "pattern": "^[a-f0-9]{64}$"
+                  }
+                },
+                "threshold": {
+                  "type": "number",
+                  "minimum": 1
+                }
+              }
+            },
+            "targets": {
+              "type": "object",
+              "required": ["keyids", "threshold"],
+              "additionalProperties": false,
+              "properties": {
+                "keyids": {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "minLength": 64,
+                    "maxLength": 64,
+                    "pattern": "^[a-f0-9]{64}$"
+                  }
+                },
+                "threshold": {
+                  "type": "number",
+                  "minimum": 1
+                }
+              }
+            },
+            "timestamp": {
+              "type": "object",
+              "required": ["keyids", "threshold"],
+              "additionalProperties": false,
+              "properties": {
+                "keyids": {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "minLength": 64,
+                    "maxLength": 64,
+                    "pattern": "^[a-f0-9]{64}$"
+                  }
+                },
+                "threshold": {
+                  "type": "number",
+                  "minimum": 1
+                }
+              }
+            }
+          }
+        },
+        "spec_version": {
+          "type": "string",
+          "pattern": "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$"
+        },
+        "version": {
+          "type": "number",
+          "minimum": 1
+        }
+      }
+    }
+  }
+}
diff --git a/schemas/snapshot.schema.json b/schemas/snapshot.schema.json
new file mode 100644
index 0000000..ec7f0cd
--- /dev/null
+++ b/schemas/snapshot.schema.json
@@ -0,0 +1,93 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "signatures": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "keyid": {
+              "type": "string",
+              "minLength": 64,
+              "maxLength": 64,
+              "pattern": "^[a-f0-9]{64}$"
+            },
+            "sig": {
+              "type": "string",
+              "minLength": 1
+            }
+          },
+          "required": [
+            "keyid",
+            "sig"
+          ]
+        }
+      ]
+    },
+    "signed": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "_type": {
+          "enum": ["snapshot"]
+        },
+        "expires": {
+          "type": "string",
+          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
+        },
+        "meta": {
+          "type": "object",
+          "additionalProperties": true,
+          "properties": {
+            "targets.json": {
+              "type": "object",
+              "additionalProperties": false,
+              "properties": {
+                "version": {
+                  "type": "integer",
+                  "minimum": 1
+                },
+                "length": {
+                  "type": "integer",
+                  "minimum": 1
+                },
+                "hashes": {
+                  "type": "object"
+                }
+              },
+              "required": [
+                "version"
+              ]
+            }
+          },
+          "required": [
+            "targets.json"
+          ]
+        },
+        "spec_version": {
+          "type": "string",
+          "pattern": "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$"
+        },
+        "version": {
+          "type": "integer",
+          "minimum": 1
+        }
+      },
+      "required": [
+        "_type",
+        "expires",
+        "meta",
+        "spec_version",
+        "version"
+      ]
+    }
+  },
+  "required": [
+    "signatures",
+    "signed"
+  ]
+}
diff --git a/schemas/targets.schema.json b/schemas/targets.schema.json
new file mode 100644
index 0000000..8828616
--- /dev/null
+++ b/schemas/targets.schema.json
@@ -0,0 +1,178 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "signatures": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "keyid": {
+              "type": "string",
+              "minLength": 64,
+              "maxLength": 64,
+              "pattern": "^[a-f0-9]{64}$"
+            },
+            "sig": {
+              "type": "string",
+              "minLength": 1
+            }
+          },
+          "required": [
+            "keyid",
+            "sig"
+          ]
+        }
+      ]
+    },
+    "signed": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "_type": {
+          "enum": ["targets"]
+        },
+        "delegations": {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "keys": {
+              "type": "object",
+              "patternProperties": {
+                "^[0-9a-f]{64}$": {
+                  "type": "object",
+                  "required": ["keytype", "keyval", "scheme"],
+                  "additionalProperties": true,
+                  "properties": {
+                    "keytype": {
+                      "enum": ["rsa", "ed25519", "ecdsa-sha2-nistp256"]
+                    },
+                    "keyval": {
+                      "type": "object",
+                      "required": ["public"],
+                      "additionalProperties": false,
+                      "properties": {
+                        "public": {
+                          "type": "string",
+                          "minLength": 1
+                        }
+                      }
+                    },
+                    "scheme": {
+                      "enum": ["rsassa-pss-sha256", "ed25519", "ecdsa-sha2-nistp256"]
+                    }
+                  }
+                }
+              }
+            },
+            "roles": {
+              "type": "array",
+              "items": {
+                "type": "object",
+                "additionalProperties": false,
+                "properties": {
+                  "name": {
+                    "type": "string",
+                    "minLength": 1
+                  },
+                  "keyids": {
+                    "type": "array",
+                    "items": {
+                      "type": "string",
+                      "minLength": 64,
+                      "maxLength": 64,
+                      "pattern": "^[a-f0-9]{64}$"
+                    }
+                  },
+                  "threshold": {
+                    "type": "integer",
+                    "minimum": 1
+                  },
+                  "path_hash_prefixes": {
+                    "type": "string",
+                    "minLength": 1
+                  },
+                  "paths": {
+                    "type": "array",
+                    "minLength": 1
+                  },
+                  "terminating": {
+                    "type": "boolean"
+                  }
+                },
+                "required": ["name", "keyids", "threshold", "paths", "terminating"]
+              }
+            }
+          }
+        },
+        "expires": {
+          "type": "string",
+          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
+        },
+        "spec_version": {
+          "type": "string",
+          "pattern": "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$"
+        },
+        "targets": {
+          "type": "object",
+          "additionalProperties": false,
+          "patternProperties": {
+            ".+": {
+              "type": "object",
+              "additionalProperties": false,
+              "properties": {
+                "custom": {
+                  "type": "object"
+                },
+                "hashes": {
+                  "type": "object",
+                  "additionalProperties": false,
+                  "properties": {
+                    "sha256": {
+                      "type": "string",
+                      "minLength": 64,
+                      "maxLength": 64,
+                      "pattern": "^[a-f0-9]{64}$"
+                    },
+                    "sha512": {
+                      "type": "string",
+                      "minLength": 128,
+                      "maxLength": 128,
+                      "pattern": "^[a-f0-9]{128}$"
+                    }
+                  }
+                },
+                "length": {
+                  "type": "integer",
+                  "minimum": 1
+                }
+              },
+              "required": [
+                "hashes",
+                "length"
+              ]
+            }
+          }
+        },
+        "version": {
+          "type": "integer",
+          "minimum": 1
+        }
+      },
+      "required": [
+        "_type",
+        "expires",
+        "spec_version",
+        "targets",
+        "version"
+      ]
+    }
+  },
+  "required": [
+    "signatures",
+    "signed"
+  ]
+}
diff --git a/schemas/timestamp.schema.json b/schemas/timestamp.schema.json
new file mode 100644
index 0000000..7282c9a
--- /dev/null
+++ b/schemas/timestamp.schema.json
@@ -0,0 +1,110 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "signatures": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "keyid": {
+              "type": "string",
+              "minLength": 64,
+              "maxLength": 64,
+              "pattern": "^[a-f0-9]{64}$"
+            },
+            "sig": {
+              "type": "string",
+              "minLength": 1
+            }
+          },
+          "required": [
+            "keyid",
+            "sig"
+          ]
+        }
+      ]
+    },
+    "signed": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "_type": {
+          "enum": ["timestamp"]
+        },
+        "expires": {
+          "type": "string",
+          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
+        },
+        "meta": {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "snapshot.json": {
+              "type": "object",
+              "additionalProperties": false,
+              "properties": {
+                "hashes": {
+                  "type": "object",
+                  "additionalProperties": false,
+                  "properties": {
+                    "sha256": {
+                      "type": "string",
+                      "minLength": 64,
+                      "maxLength": 64,
+                      "pattern": "^[a-f0-9]{64}$"
+                    },
+                    "sha512": {
+                      "type": "string",
+                      "minLength": 128,
+                      "maxLength": 128,
+                      "pattern": "^[a-f0-9]{128}$"
+                    }
+                  }
+                },
+                "length": {
+                  "type": "integer",
+                  "minimum": 1
+                },
+                "version": {
+                  "type": "integer",
+                  "minimum": 1
+                }
+              },
+              "required": [
+                "hashes",
+                "length",
+                "version"
+              ]
+            }
+          },
+          "required": [
+            "snapshot.json"
+          ]
+        },
+        "spec_version": {
+          "type": "string",
+          "pattern": "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$"
+        },
+        "version": {
+          "type": "integer",
+          "minimum": 1
+        }
+      },
+      "required": [
+        "_type",
+        "expires",
+        "meta",
+        "spec_version",
+        "version"
+      ]
+    }
+  },
+  "required": [
+    "signatures",
+    "signed"
+  ]
+}
diff --git a/tuf-spec.md b/tuf-spec.md
index 9616036..ce85497 100644
--- a/tuf-spec.md
+++ b/tuf-spec.md
@@ -3,7 +3,7 @@ Title: The Update Framework Specification
 Shortname: TUF
 Status: LS
 Abstract: A framework for securing software update systems.
-Date: 2022-04-28
+Date: 2022-09-15
 Editor: Justin Cappos, NYU
 Editor: Trishank Karthik Kuppusamy, Datadog
 Editor: Joshua Lock, VMware
@@ -16,7 +16,7 @@ Boilerplate: copyright no, conformance no
 Local Boilerplate: header yes
 Markup Shorthands: css no, markdown yes
 Metadata Include: This version off, Abstract off
-Text Macro: VERSION 1.0.30
+Text Macro: VERSION 1.0.31
 </pre>
 
 Note: We strive to make the specification easy to implement, so if you come
@@ -516,6 +516,10 @@ floating-point numbers omitted.  When calculating the digest of an
 object, we use the "canonical JSON" subdialect as described at [Canonical JSON](
 http://wiki.laptop.org/go/Canonical_JSON).
 
+Users of TUF can use JSON schema files available in [theupdateframework/specification
+repository](https://github.com/theupdateframework/specification/tree/master/schemas)
+to validate TUF JSON files.
+
 ## File formats: general principles ## {#file-formats-general-principles}
 
 All signed metadata objects have the format: