iCalendar Element Registries
- Created
- 2009-04-29
- Last Updated
- 2023-02-21
- Note
-
A Standards Track RFC is required for registration of iCalendar elements that modify elements previously documented in a Standards Track RFC.
- Available Formats
-
XML
HTML
Plain text
Registries included below
- Components
- Properties
- Parameters
- Value Data Types
- Calendar User Types
- Free/Busy Time Types
- Participation Statuses
- Relationship Types
- Participation Roles
- Actions
- Classifications
- Methods
- REQUEST-STATUS Values
- Schedule Agent Values Registry
- Schedule Force Send Values Registry
- Display Types
- Feature Types
- Participant Types
- Resource Types
- Proximity Values
Components
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Component | Status | Reference |
---|---|---|
VCALENDAR | Current | [RFC5545], Section 3.4 |
VEVENT | Current | [RFC5545], Section 3.6.1 |
VTODO | Current | [RFC5545], Section 3.6.2 |
VJOURNAL | Current | [RFC5545], Section 3.6.3 |
VFREEBUSY | Current | [RFC5545], Section 3.6.4 |
VTIMEZONE | Current | [RFC5545], Section 3.6.5 |
VALARM | Current | [RFC5545], Section 3.6.6 |
STANDARD | Current | [RFC5545], Section 3.6.5 |
DAYLIGHT | Current | [RFC5545], Section 3.6.5 |
VAVAILABILITY | Current | [RFC7953], Section 3.1 |
AVAILABLE | Current | [RFC7953], Section 3.1 |
PARTICIPANT | Current | [RFC9073], Section 7.1 |
VLOCATION | Current | [RFC9073], Section 7.2 |
VRESOURCE | Current | [RFC9073], Section 7.3 |
Properties
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Property | Status | Reference |
---|---|---|
CALSCALE | Current | [RFC5545], Section 3.7.1 |
METHOD | Current | [RFC5545], Section 3.7.2 |
PRODID | Current | [RFC5545], Section 3.7.3 |
VERSION | Current | [RFC5545], Section 3.7.4 |
ATTACH | Current | [RFC5545], Section 3.8.1.1 |
CATEGORIES | Current | [RFC5545], Section 3.8.1.2; [RFC7986], Section 5.6 |
CLASS | Current | [RFC5545], Section 3.8.1.3 |
COMMENT | Current | [RFC5545], Section 3.8.1.4 |
DESCRIPTION | Current | [RFC5545], Section 3.8.1.5; [RFC7986], Section 5.2 |
GEO | Current | [RFC5545], Section 3.8.1.6 |
LOCATION | Current | [RFC5545], Section 3.8.1.7 |
PERCENT-COMPLETE | Current | [RFC5545], Section 3.8.1.8 |
PRIORITY | Current | [RFC5545], Section 3.8.1.9 |
RESOURCES | Current | [RFC5545], Section 3.8.1.10 |
STATUS | Current | [RFC5545], Section 3.8.1.11 |
SUMMARY | Current | [RFC5545], Section 3.8.1.12 |
COMPLETED | Current | [RFC5545], Section 3.8.2.1 |
DTEND | Current | [RFC5545], Section 3.8.2.2 |
DUE | Current | [RFC5545], Section 3.8.2.3 |
DTSTART | Current | [RFC5545], Section 3.8.2.4 |
DURATION | Current | [RFC5545], Section 3.8.2.5 |
FREEBUSY | Current | [RFC5545], Section 3.8.2.6 |
TRANSP | Current | [RFC5545], Section 3.8.2.7 |
TZID | Current | [RFC5545], Section 3.8.3.1 |
TZNAME | Current | [RFC5545], Section 3.8.3.2 |
TZOFFSETFROM | Current | [RFC5545], Section 3.8.3.3 |
TZOFFSETTO | Current | [RFC5545], Section 3.8.3.4 |
TZURL | Current | [RFC5545], Section 3.8.3.5 |
ATTENDEE | Current | [RFC5545], Section 3.8.4.1 |
CONTACT | Current | [RFC5545], Section 3.8.4.2 |
ORGANIZER | Current | [RFC5545], Section 3.8.4.3 |
RECURRENCE-ID | Current | [RFC5545], Section 3.8.4.4 |
RELATED-TO | Current | [RFC5545], Section 3.8.4.5; [RFC9253], Section 9.1 |
URL | Current | [RFC5545], Section 3.8.4.6; [RFC7986], Section 5.5 |
UID | Current | [RFC5545], Section 3.8.4.7; [RFC7986], Section 5.3 |
EXDATE | Current | [RFC5545], Section 3.8.5.1 |
EXRULE | Deprecated | [RFC2445], Section 4.8.5.2 |
RDATE | Current | [RFC5545], Section 3.8.5.2 |
RRULE | Current | [RFC5545], Section 3.8.5.3 |
ACTION | Current | [RFC5545], Section 3.8.6.1 |
REPEAT | Current | [RFC5545], Section 3.8.6.2 |
TRIGGER | Current | [RFC5545], Section 3.8.6.3 |
CREATED | Current | [RFC5545], Section 3.8.7.1 |
DTSTAMP | Current | [RFC5545], Section 3.8.7.2 |
LAST-MODIFIED | Current | [RFC5545], Section 3.8.7.3; [RFC7986], Section 5.4 |
SEQUENCE | Current | [RFC5545], Section 3.8.7.4 |
REQUEST-STATUS | Current | [RFC5545], Section 3.8.8.3 |
XML | Current | [RFC6321], Section 4.2 |
TZUNTIL | Current | [RFC7808], Section 7.1 |
TZID-ALIAS-OF | Current | [RFC7808], Section 7.2 |
BUSYTYPE | Current | [RFC7953], Section 3.2 |
NAME | Current | [RFC7986], Section 5.1 |
REFRESH-INTERVAL | Current | [RFC7986], Section 5.7 |
SOURCE | Current | [RFC7986], Section 5.8 |
COLOR | Current | [RFC7986], Section 5.9 |
IMAGE | Current | [RFC7986], Section 5.10 |
CONFERENCE | Current | [RFC7986], Section 5.11 |
CALENDAR-ADDRESS | Current | [RFC9073], Section 6.4 |
LOCATION-TYPE | Current | [RFC9073], Section 6.1 |
PARTICIPANT-TYPE | Current | [RFC9073], Section 6.2 |
RESOURCE-TYPE | Current | [RFC9073], Section 6.3 |
STRUCTURED-DATA | Current | [RFC9073], Section 6.6 |
STYLED-DESCRIPTION | Current | [RFC9073], Section 6.5 |
ACKNOWLEDGED | Current | [RFC9074], Section 6.1 |
PROXIMITY | Current | [RFC9074], Section 8.1 |
CONCEPT | Current | [RFC9253], Section 8.1 |
LINK | Current | [RFC9253], Section 8.2 |
REFID | Current | [RFC9253], Section 8.3 |
Parameters
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Parameter | Status | Reference |
---|---|---|
ALTREP | Current | [RFC5545], Section 3.2.1 |
CN | Current | [RFC5545], Section 3.2.2 |
CUTYPE | Current | [RFC5545], Section 3.2.3 |
DELEGATED-FROM | Current | [RFC5545], Section 3.2.4 |
DELEGATED-TO | Current | [RFC5545], Section 3.2.5 |
DIR | Current | [RFC5545], Section 3.2.6 |
ENCODING | Current | [RFC5545], Section 3.2.7 |
FMTTYPE | Current | [RFC5545], Section 3.2.8 |
FBTYPE | Current | [RFC5545], Section 3.2.9 |
LANGUAGE | Current | [RFC5545], Section 3.2.10 |
MEMBER | Current | [RFC5545], Section 3.2.11 |
PARTSTAT | Current | [RFC5545], Section 3.2.12 |
RANGE | Current | [RFC5545], Section 3.2.13 |
RELATED | Current | [RFC5545], Section 3.2.14 |
RELTYPE | Current | [RFC5545], Section 3.2.15 |
ROLE | Current | [RFC5545], Section 3.2.16 |
RSVP | Current | [RFC5545], Section 3.2.17 |
SCHEDULE-AGENT | Current | [RFC6638], Section 7.1 |
SCHEDULE-FORCE-SEND | Current | [RFC6638], Section 7.2 |
SCHEDULE-STATUS | Current | [RFC6638], Section 7.3 |
SENT-BY | Current | [RFC5545], Section 3.2.18 |
TZID | Current | [RFC5545], Section 3.2.19 |
VALUE | Current | [RFC5545], Section 3.2.20 |
DISPLAY | Current | [RFC7986], Section 6.1 |
Current | [RFC7986], Section 6.2 | |
FEATURE | Current | [RFC7986], Section 6.3 |
LABEL | Current | [RFC7986], Section 6.4 |
SIZE | Current | [RFC8607], Section 4.1 |
FILENAME | Current | [RFC8607], Section 4.2 |
MANAGED-ID | Current | [RFC8607], Section 4.3 |
ORDER | Current | [RFC9073], Section 5.1 |
SCHEMA | Current | [RFC9073], Section 5.2 |
DERIVED | Current | [RFC9073], Section 5.3 |
GAP | Current | [RFC9253], Section 6.2 |
LINKREL | Current | [RFC9253], Section 6.1 |
Value Data Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Note
-
A Standards Track RFC is REQUIRED for the registration of new Value Data Types that modify existing properties.
- Available Formats
-
CSV
Value Data Type | Status | Reference |
---|---|---|
BINARY | Current | [RFC5545], Section 3.3.1 |
BOOLEAN | Current | [RFC5545], Section 3.3.2 |
CAL-ADDRESS | Current | [RFC5545], Section 3.3.3 |
DATE | Current | [RFC5545], Section 3.3.4 |
DATE-TIME | Current | [RFC5545], Section 3.3.5 |
DURATION | Current | [RFC5545], Section 3.3.6 |
FLOAT | Current | [RFC5545], Section 3.3.7 |
INTEGER | Current | [RFC5545], Section 3.3.8 |
PERIOD | Current | [RFC5545], Section 3.3.9 |
RECUR | Current | [RFC5545], Section 3.3.10 |
TEXT | Current | [RFC5545], Section 3.3.11 |
TIME | Current | [RFC5545], Section 3.3.12 |
UNKNOWN | Reserved - Do not use | [RFC7265], Section 5 |
URI | Current | [RFC5545], Section 3.3.13 |
UTC-OFFSET | Current | [RFC5545], Section 3.3.14 |
XML-REFERENCE | Current | [RFC9253], Section 7 |
UID | Current | [RFC9253], Section 7 |
Calendar User Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Calendar User Type | Status | Reference |
---|---|---|
INDIVIDUAL | Current | [RFC5545], Section 3.2.3 |
GROUP | Current | [RFC5545], Section 3.2.3 |
RESOURCE | Current | [RFC5545], Section 3.2.3 |
ROOM | Current | [RFC5545], Section 3.2.3 |
UNKNOWN | Current | [RFC5545], Section 3.2.3 |
Free/Busy Time Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Free/Busy Time Type | Status | Reference |
---|---|---|
FREE | Current | [RFC5545], Section 3.2.9 |
BUSY | Current | [RFC5545], Section 3.2.9 |
BUSY-UNAVAILABLE | Current | [RFC5545], Section 3.2.9 |
BUSY-TENTATIVE | Current | [RFC5545], Section 3.2.9 |
Participation Statuses
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Note
-
A Standards Track RFC is REQUIRED for the registration of Participation Status values to be used in "VEVENT" calendar components.
- Available Formats
-
CSV
Participation Status | Status | Reference |
---|---|---|
NEEDS-ACTION | Current | [RFC5545], Section 3.2.12 |
ACCEPTED | Current | [RFC5545], Section 3.2.12 |
DECLINED | Current | [RFC5545], Section 3.2.12 |
TENTATIVE | Current | [RFC5545], Section 3.2.12 |
DELEGATED | Current | [RFC5545], Section 3.2.12 |
COMPLETED | Current | [RFC5545], Section 3.2.12 |
IN-PROCESS | Current | [RFC5545], Section 3.2.12 |
Relationship Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Relationship Type | Status | Reference |
---|---|---|
CHILD | Current | [RFC5545], Section 3.2.15 |
PARENT | Current | [RFC5545], Section 3.2.15 |
SIBLING | Current | [RFC5545], Section 3.2.15 |
SNOOZE | Current | [RFC9074], Section 7.1 |
CONCEPT | Current | [RFC9253], Section 5 |
DEPENDS-ON | Current | [RFC9253], Section 5 |
FINISHTOFINISH | Current | [RFC9253], Section 4 |
FINISHTOSTART | Current | [RFC9253], Section 4 |
FIRST | Current | [RFC9253], Section 5 |
NEXT | Current | [RFC9253], Section 5 |
REFID | Current | [RFC9253], Section 5 |
STARTTOFINISH | Current | [RFC9253], Section 4 |
STARTTOSTART | Current | [RFC9253], Section 4 |
Participation Roles
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Role Type | Status | Reference |
---|---|---|
CHAIR | Current | [RFC5545], Section 3.2.16 |
REQ-PARTICIPANT | Current | [RFC5545], Section 3.2.16 |
OPT-PARTICIPANT | Current | [RFC5545], Section 3.2.16 |
NON-PARTICIPANT | Current | [RFC5545], Section 3.2.16 |
Actions
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Action | Status | Reference |
---|---|---|
AUDIO | Current | [RFC5545], Section 3.8.6.1 |
DISPLAY | Current | [RFC5545], Section 3.8.6.1 |
Current | [RFC5545], Section 3.8.6.1 | |
PROCEDURE | Deprecated | [RFC2445], Section 4.8.6.1 |
Classifications
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Classification | Status | Reference |
---|---|---|
PUBLIC | Current | [RFC5545], Section 3.8.1.3 |
PRIVATE | Current | [RFC5545], Section 3.8.1.3 |
CONFIDENTIAL | Current | [RFC5545], Section 3.8.1.3 |
Methods
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5545]
- Available Formats
-
CSV
Method | Status | Reference |
---|---|---|
PUBLISH | Current | [RFC5546] |
REQUEST | Current | [RFC5546] |
REPLY | Current | [RFC5546] |
ADD | Current | [RFC5546] |
CANCEL | Current | [RFC5546] |
REFRESH | Current | [RFC5546] |
COUNTER | Current | [RFC5546] |
DECLINECOUNTER | Current | [RFC5546] |
REQUEST-STATUS Values
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Bernard Desruisseaux, Ken Murchison, Mike Douglass
- Reference
- [RFC5546]
- Available Formats
-
CSV
Status Code | Status | Reference |
---|---|---|
1.0 | Current | [RFC6638], Section 3.2.9.1 |
1.1 | Current | [RFC6638], Section 3.2.9.2 |
1.2 | Current | [RFC6638], Section 3.2.9.3 |
2.0 | Current | [RFC5546], Section 3.6.1 |
2.1 | Current | [RFC5546], Section 3.6.2 |
2.2 | Current | [RFC5546], Section 3.6.3 |
2.3 | Current | [RFC5546], Section 3.6.4 |
2.4 | Current | [RFC5546], Section 3.6.5 |
2.5 | Current | [RFC5546], Section 3.6.6 |
2.6 | Current | [RFC5546], Section 3.6.7 |
2.7 | Current | [RFC5546], Section 3.6.8 |
2.8 | Current | [RFC5546], Section 3.6.9 |
2.9 | Current | [RFC5546], Section 3.6.10 |
2.10 | Current | [RFC5546], Section 3.6.11 |
2.11 | Current | [RFC5546], Section 3.6.12 |
3.0 | Current | [RFC5546], Section 3.6.13 |
3.1 | Current | [RFC5546], Section 3.6.14 |
3.2 | Current | [RFC5546], Section 3.6.15 |
3.3 | Current | [RFC5546], Section 3.6.16 |
3.4 | Current | [RFC5546], Section 3.6.17 |
3.5 | Current | [RFC5546], Section 3.6.18 |
3.6 | Current | [RFC5546], Section 3.6.19 |
3.7 | Current | [RFC5546], Section 3.6.20 |
3.8 | Current | [RFC5546], Section 3.6.21 |
3.9 | Current | [RFC5546], Section 3.6.22 |
3.10 | Current | [RFC5546], Section 3.6.23 |
3.11 | Current | [RFC5546], Section 3.6.24 |
3.12 | Current | [RFC5546], Section 3.6.25 |
3.13 | Current | [RFC5546], Section 3.6.26 |
3.14 | Current | [RFC5546], Section 3.6.27 |
4.0 | Current | [RFC5546], Section 3.6.28 |
5.0 | Current | [RFC5546], Section 3.6.29 |
5.1 | Current | [RFC5546], Section 3.6.30 |
5.2 | Current | [RFC5546], Section 3.6.31 |
5.3 | Current | [RFC5546], Section 3.6.32 |
Schedule Agent Values Registry
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Unassigned
- Reference
- [RFC6638]
- Available Formats
-
CSV
Schedule Agent | Status | Reference |
---|---|---|
SERVER | Current | [RFC6638], Section 7.1 |
CLIENT | Current | [RFC6638], Section 7.1 |
NONE | Current | [RFC6638], Section 7.1 |
Schedule Force Send Values Registry
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Unassigned
- Reference
- [RFC6638]
- Available Formats
-
CSV
Schedule Force Send | Status | Reference |
---|---|---|
REQUEST | Current | [RFC6638], Section 7.2 |
REPLY | Current | [RFC6638], Section 7.2 |
Display Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Unassigned
- Reference
- [RFC7986]
- Available Formats
-
CSV
Display Type | Status | Reference |
---|---|---|
BADGE | Current | [RFC7986], Section 6.1 |
GRAPHIC | Current | [RFC7986], Section 6.1 |
FULLSIZE | Current | [RFC7986], Section 6.1 |
THUMBNAIL | Current | [RFC7986], Section 6.1 |
Feature Types
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Unassigned
- Reference
- [RFC7986]
- Available Formats
-
CSV
Name | Status | Reference |
---|---|---|
AUDIO | Current | [RFC7986], Section 6.3 |
CHAT | Current | [RFC7986], Section 6.3 |
FEED | Current | [RFC7986], Section 6.3 |
MODERATOR | Current | [RFC7986], Section 6.3 |
PHONE | Current | [RFC7986], Section 6.3 |
SCREEN | Current | [RFC7986], Section 6.3 |
VIDEO | Current | [RFC7986], Section 6.3 |
Participant Types
- Registration Procedure(s)
-
Expert Review
- Expert(s)
-
Ken Murchison, Michael Douglass
- Reference
- [RFC9073]
- Available Formats
-
CSV
Participant Type | Status | Reference |
---|---|---|
ACTIVE | Current | [RFC9073], Section 6.2 |
INACTIVE | Current | [RFC9073], Section 6.2 |
SPONSOR | Current | [RFC9073], Section 6.2 |
CONTACT | Current | [RFC9073], Section 6.2 |
BOOKING-CONTACT | Current | [RFC9073], Section 6.2 |
EMERGENCY-CONTACT | Current | [RFC9073], Section 6.2 |
PUBLICITY-CONTACT | Current | [RFC9073], Section 6.2 |
PLANNER-CONTACT | Current | [RFC9073], Section 6.2 |
PERFORMER | Current | [RFC9073], Section 6.2 |
SPEAKER | Current | [RFC9073], Section 6.2 |
Resource Types
- Registration Procedure(s)
-
Expert Review
- Expert(s)
-
Ken Murchison, Michael Douglass
- Reference
- [RFC9073]
- Available Formats
-
CSV
Resource Type | Status | Reference |
---|---|---|
PROJECTOR | Current | [RFC9073], Section 6.3 |
ROOM | Current | [RFC9073], Section 6.3 |
REMOTE-CONFERENCE-AUDIO | Current | [RFC9073], Section 6.3 |
REMOTE-CONFERENCE-VIDEO | Current | [RFC9073], Section 6.3 |
Proximity Values
- Registration Procedure(s)
-
Expert Review with RFC Required
- Expert(s)
-
Ken Murchison, Michael Douglass
- Reference
- [RFC9074]
- Available Formats
-
CSV
Value | Status | Reference |
---|---|---|
ARRIVE | Current | [RFC9074], Section 8.1 |
DEPART | Current | [RFC9074], Section 8.1 |
CONNECT | Current | [RFC9074], Section 8.1 |
DISCONNECT | Current | [RFC9074], Section 8.1 |