Spielberg - McLaren driver Fernando Alonso will start the Austrian Grand Prix from the back of the grid and Red Bull's Daniel Ricciardo drops 10 places because they used up their four allocated engines.
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Alonso has taken his fifth Honda power unit and Ricciardo his fifth Renault unit.
Alonso's drop of 20 places is greater because the Spanish driver is also using a fifth turbocharger and a fifth MGU-H an exhaust energy recovery system, each of which incur further five-place drops.
Alonso faces further time penalties unless he qualifies on pole position because otherwise he would not be able to drop the required number of positions.
Those penalties, either a five-second penalty or a 10-second stop-go penalty, depend on the number of unused places on the grid.