IATA is creating a database ... for airline baggage fees and rules. Maybe they will also include interlining info in this (at least it will clearly indicate which are IATA airlines, despite the badging this seems to be confusing). http://consumerist.com/2010/06/iata-...ees-rules.html

IATA states the following benefits for interlining:

What is interline travel?
On a worldwide basis, a large proportion of journeys require the services of two or more airlines in order for the passenger to complete a single journey. The interline system is the global network of international air transport services linking most cities with scheduled air services. It has been facilitated by IATA's creation of standards accepted by carriers around the world.

.What does an interline ticket offer?
The interline system provides a travel option that enables:
-fully flexible fares
-allows last minute changes/routings on other airlines
-provides a single ticket (fare) for a journey using 2 or more carriers
-provides for baggage transfer at connecting points
-interlining provides consumers with additional flexibility when:
* direct flights are not operated on the day or at the time the consumer wishes to travel
* the passenger wishes to stop at an intermediate city or cities
* the passenger chooses to fly on different airlines on the outbound and the return journeys

List of IATA airlines at http://www.iata.org/membership/Pages....aspx?All=true

Pertinent to this discussion is that QF is IATA member but JQ is not.
So all IATA-standard-compliant activity by JQ is optional (and there are many).

It just occured to me that this is the reason that QF doesn't codeshare on JQ (except for FF awards)!!!!!! IATA standards apply only for revenue tickets (not FF awards, though in practice you get full benefits). So QF cannot sell codeshares on JQ as it is not IATA compliant (and obviously has chosen to keep JQ away from IATA membership).