What are the limitations, if any, for the use of the Provider service Identifier (PSID)?
PSID must be used in compliance with the IEEE 1609™ set of standards. The only other limitation for PSID is that the value used must be registered by IEEE. The registered values are limited by the four- byte PSID field. Previously assigned values are not available for new assignment. If they are no longer to be used, the values will remain as “grandfathered” and will not be reassigned. The IEEE Std 1609.3™-2007 includes in Table 7 a list of assigned values that were valid as of the time of initial publication. Due to the potentially extremely large size that this list could become, it will be impractical to maintain the PSID list in the standard throughout its life. Therefore, users of these standards should refer to the IEEE Registration Authority (RA) web site for an up to date list of assigned values.
