CFI Instrument Practical Test Standards, FAA-S-8081-9B, June 2001

III. Preflight Preparation

A. Weather Information

b. PATWAS and TIBS

1) Pilot's automatic telephone weather answering service (PATWAS)
a) Provided by nonautomated FSS
b) Recorded telephone briefing
i) Local area forecast (usually within a 50 NM radius)
ii) Some also include route forecasts siimilar to TWEB
2) Telepone information briefing service (TIBS)
a) Weather and aeronautical information
i) Area and/or route briefings
ii) Airspace procedures
iii) Special announcements
b) May also include
i) METARs
ii) TAFs
iii) Winds aloft
c) Use touch-tone phone to select different TIBS briefing areas and/or routes
d) TIBS information is the same as in a standard briefing
e) Use as preliminary briefing (not intended to substitute for specialist-provided preflight briefing)

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