diff --git a/registries/_format/base64url.md b/registries/_format/base64url.md
new file mode 100644
index 0000000000..0756f637b0
--- /dev/null
+++ b/registries/_format/base64url.md
@@ -0,0 +1,29 @@
+---
+owner: baywet
+issue:
+description: Binary data encoded as a url-safe string as defined in [RFC4648](https://www.rfc-editor.org/rfc/rfc4648#section-5)
+base_type: string
+layout: default
+deprecated_note: '3.1'
+remarks: "When using OpenAPI 3.1 it's recommended not to use this format and instead use [`contentEncoding` with a value of `base64url`](https://json-schema.org/draft/2020-12/json-schema-validation.html#name-contentencoding)."
+---
+
+# <a href="..">{{ page.collection }}</a>
+
+## {{ page.slug }} - {{ page.description }}
+
+Base type: `{{ page.base_type }}`.
+
+The `{{page.slug}}` format is binary data encoded as a url-safe string as defined in [RFC4648](https://www.rfc-editor.org/rfc/rfc4648#section-5).
+
+{% if page.issue %}
+### GitHub Issue
+
+* [#{{ page.issue }}](https://github.com/OAI/OpenAPI-Specification/issues/{{ page.issue }})
+{% endif %}
+
+{% if page.remarks %}
+### Remarks
+
+{{ page.remarks }}
+{% endif %}
\ No newline at end of file
diff --git a/registries/_format/char.md b/registries/_format/char.md
new file mode 100644
index 0000000000..4ac98e911d
--- /dev/null
+++ b/registries/_format/char.md
@@ -0,0 +1,27 @@
+---
+owner: baywet
+issue:
+description: A single character
+base_type: string
+layout: default
+---
+
+# <a href="..">{{ page.collection }}</a>
+
+## {{ page.slug }} - {{ page.description }}
+
+Base type: `{{ page.base_type }}`.
+
+The `{{page.slug}}` format is a single character.
+
+{% if page.issue %}
+### GitHub Issue
+
+* [#{{ page.issue }}](https://github.com/OAI/OpenAPI-Specification/issues/{{ page.issue }})
+{% endif %}
+
+{% if page.remarks %}
+### Remarks
+
+{{ page.remarks }}
+{% endif %}
\ No newline at end of file
diff --git a/registries/_format/decimal.md b/registries/_format/decimal.md
new file mode 100644
index 0000000000..a48196419f
--- /dev/null
+++ b/registries/_format/decimal.md
@@ -0,0 +1,32 @@
+---
+owner: baywet
+issue: 889
+description: A fixed point decimal number
+base_type: string
+layout: default
+remarks: Potential loss of precision when used with type number. Not specific enough about the size of the integral and fraction parts without the use of extensions.
+---
+
+# <a href="..">{{ page.collection }}</a>
+
+## {{ page.slug }} - {{ page.description }}
+
+Base type: `{{ page.base_type }}`.
+
+The `{{page.slug}}` format represents a fixed point decimal number.
+
+{% if page.issue %}
+### GitHub Issue
+
+* [#{{ page.issue }}](https://github.com/OAI/OpenAPI-Specification/issues/{{ page.issue }})
+{% endif %}
+
+{% if page.remarks %}
+### Remarks
+
+When the decimal format is used in combination with the number type, unintentional loss of precision can happen during serialization as most JSON serializers will serialize the value **1.10** to **1.1**.
+
+This format is not prescriptive enough to enable interoperability and its usage is discouraged.
+
+{{ page.remarks }}
+{% endif %}
\ No newline at end of file
diff --git a/registries/_format/int16.md b/registries/_format/int16.md
new file mode 100644
index 0000000000..51626b6c41
--- /dev/null
+++ b/registries/_format/int16.md
@@ -0,0 +1,27 @@
+---
+owner: DarrelMiller
+issue: 
+description: signed 16-bit integer
+base_type: number
+layout: default
+---
+
+# <a href="..">{{ page.collection }}</a>
+
+## {{ page.slug }} - {{ page.description }}
+
+Base type: `{{ page.base_type }}`.
+
+The `{{page.slug}}` format represents a signed 16-bit integer, with the range -32768 through +32767.
+
+{% if page.issue %}
+### GitHub Issue
+
+* [#{{ page.issue }}](https://github.com/OAI/OpenAPI-Specification/issues/{{ page.issue }})
+{% endif %}
+
+{% if page.remarks %}
+### Remarks
+
+{{ page.remarks }}
+{% endif %}
\ No newline at end of file