PICS Content Labels are values neutral
"The technical working group will define a format for
labels, indicating required and optional fields. The format will
not specify which words or categories will be used for labeling
or the criteria for assigning labels to items."
(excerpt from the Technical Committee Charter)
Required information:
- the rating service which created the label,
- the name of a category in their rating system,
- a value on the scale for that category.
Optional information:
- When the label was assigned to the information
- When the label expires
- Consistency checking information (URL of information, date
of information when it was rated, cryptographic checksum of information
actually rated)
- Who provided the rating
- Where additional information can be found
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