_id	Field	Label	Definition	Required
1	@type	Metadata Type	IRI for the JSON-LD data type. This should be dcat:Dataset for each Dataset.	No
2	title	Title	Human-readable name of the asset. Should be in plain English and include sufficient detail to facilitate search and discovery.	Always
3	description	Description	Human-readable description (e.g., an abstract) with sufficient detail to enable a user to quickly understand whether the asset is of interest.	Always
4	keyword	Tags	Tags (or keywords) help users discover your dataset; please include terms that would be used by technical and non-technical users.	Always
5	modified	Last Update	Most recent date on which the dataset was changed, updated or modified.	Always
6	publisher	Publisher	The publishing entity and optionally their parent organization(s).	Always
7	contactPoint	Contact Name and Email	Contact person’s name and email for the asset.	Always
8	identifier	Unique Identifier	A unique identifier for the dataset or API as maintained within an Agency catalog or database.	Always
9	accessLevel	Public Access Level	The degree to which this dataset could be made publicly-available, regardless of whether it has been made available. Choices: public (Data asset is or could be made publicly available to all without restrictions), restricted public (Data asset is available under certain use restrictions), or non-public (Data asset is not available to members of the public).	Always
10	bureauCodeUSG	Bureau Code	Federal agencies, combined agency and bureau code from OMB Circular A-11, Appendix C (PDF, CSV) in the format of 015:11.	Always
11	programCodeUSG	Program Code	Federal agencies, list the primary program related to this data asset, from the Federal Program Inventory. Use the format of 015:001.	Always
12	license	License	The license or non-license (i.e. Public Domain) status with which the dataset or API has been published. SeeOpen Licenses for more information.	If-Applicable
13	rights	Rights	This may include information regarding access or restrictions based on privacy, security, or other policies. This should also serve as an explanation for the selected “accessLevel” including instructions for how to access a restricted file, if applicable, or explanation for why a “non-public” or “restricted public” data asset is not “public,” if applicable. Text, 255 characters.	If-Applicable
14	spatial	Spatial	The range of spatial applicability of a dataset. Could include a spatial region like a bounding box or a named place.	If-Applicable
15	temporal	Temporal	The range of temporal applicability of a dataset (i.e., a start and end date of applicability for the data).	If-Applicable
16	distribution	Distribution	A container for the array of Distribution objects. See Dataset Distribution Fields below for details.	If-Applicable
17	accrualPeriodicity	Frequency	The frequency with which dataset is published.	No
18	conformsTo	Data Standard	URI used to identify a standardized specification the dataset conforms to.	No
19	dataQualityUSG	Data Quality	Whether the dataset meets the agency’s Information Quality Guidelines (true/false).	No
20	describedBy	Data Dictionary	URL to the data dictionary for the dataset. Note that documentation other than a data dictionary can be referenced using Related Documents (references).	No
21	describedByType	Data Dictionary Type	The machine-readable file format (IANA Media Type also known as MIME Type) of the dataset’s Data Dictionary (describedBy).	No
22	isPartOf	Collection	The collection of which the dataset is a subset.	No
23	issued	Release Date	Date of formal issuance.	No
24	language	Language	The language of the dataset.	No
25	landingPage	Homepage URL	This field is not intended for an agency’s homepage (e.g. www.agency.gov), but rather if a dataset has a human-friendly hub or landing page that users can be directed to for all resources tied to the dataset.	No
26	primaryITInvestmentUIIUSG	Primary IT Investment UII	For linking a dataset with an IT Unique Investment Identifier (UII).	No
27	references	Related Documents	Related documents such as technical information about a dataset, developer documentation, etc.	No
28	systemOfRecordsUSG	System of Records	If the system is designated as a system of records under the Privacy Act of 1974, provide the URL to the System of Records Notice related to this dataset.	No
29	theme	Category	Main thematic category of the dataset.	No
30	Extraction method	""	""	""