# Other with a published standard

Other values a published standard defines, from UN numbers to energy ratings.

## Types

| Type | What it is |
|---|---|
| [`UnNumber`](/docs/types/type-un-number.md) | A dangerous good's UN number: `UN1203`. |
| [`Orcid`](/docs/types/type-orcid.md) | A researcher's ORCID iD: `0000-0002-1825-0097`. |
| [`CefrLevel`](/docs/types/type-cefr-level.md) | A language ability level, from `A1` to `C2`. |
| [`Mpan`](/docs/types/type-mpan.md) | A UK electricity supply's 13-digit number. |
| [`Mprn`](/docs/types/type-mprn.md) | A UK gas supply's number: 6 to 10 digits. |
| [`EpcRating`](/docs/types/type-epc-rating.md) | A UK energy certificate's band: `A` to `G`. |
| [`Tenure`](/docs/types/type-tenure.md) | How land in England and Wales is held: `freehold`, `leasehold` or `commonhold`. |
| [`LawfulBasis`](/docs/types/type-lawful-basis.md) | Your lawful reason for using personal data, under GDPR: `consent`, `legitimate_interests` and so on. |
| [`Jurisdiction`](/docs/types/type-jurisdiction.md) | Where a law applies: a country, or a part of one such as England. |
| [`ModelId`](/docs/types/type-model-id.md) | An AI model by its provider and name: `openai/gpt-4o`. |