The following manufacturers have either made Pro-Cut an essential tool for their dealers, or written technical service bulletins urging dealers to use the Pro-Cut lathe. The bulletins are available below.
Acura

2013 - Acura approves Pro-Cut for warranty and customer pay brake service in USA.
BMW 2004 - BMW approves Pro-Cut for warranty service
Chrysler/Dodge/Jeep)

1996 - Chrysler releases new warranty bulletin naming Pro-Cut as preferred repair.
2003 - DaimlerChrysler names Pro-Cut a required tool for servicing Durango.

2006 - DaimlerChrysler names Pro-Cut a required tool for servicing Jeep.

2007 - DaimlerChrysler requires on-car machining for warranty service.

2008 - DaimlerChrysler begins enforcement of on-car machining for warranty service.
Citroen 2012 - Citroen approves Pro-Cut for brake service.
Ford 1998 - Ford delivers Pro-Cut brake lathes to every US and Canadian dealer.
2002 - Ford delivers lathes to every Australian and New Zealand dealer.
2005 - Ford requires Pro-Cut for warranty rotor resurfacing.
2009 - Ford Mexico approves and recommends only Pro-Cut for Mexican dealer network
2011 - Ford release Special Service Message alerting dealers that upgrade may be necessary.
2012 - Ford requires upgrade from old Pro-Cut lathe models to new.
General Motors 2003 - GM names the Pro-Cut 9.2 as an essential tool for US and Canadian dealers.
2011 - GM selects the Pro-Cut PFM GYR as the only on-car recommended lathe.
Honda 2007- Pro-Cut approved for dealer use in Canada (not published per request of Honda CAN)
2009- Recommended for India dealers
2010 - Honda of Germany approves and strongly recommends Pro-Cut lathe for their dealers.
2013- Honda approves Pro-Cut for warranty and customer pay brake service in USA
Hyundai

1997 - Hyundai TSB 97-50-007 names Pro-Cut as recommended tool.

2010 - Hyundai recommends Pro-Cut for brake service
Jaguar 2009 - Jaguar endorses Pro-Cut as recommended tool for dealers
Land Rover 2009 - Land Rover endorses Pro-Cut as recommended tool for dealers
Mazda 2011 - Mazda names Pro-Cut as required equipment for warranty repair.
2012 - Pro-Cut added to Mazda brake training- see video at http://www.youtube.com/watch?v=FH1GhSme12E&
Mitsubishi 2010 - Mitsubishi names Pro-Cut a required tool for US dealers
Nissan/Infiniti 2004 - Pro-Cut named essential tool in US.
2005 - Pro-Cut named essential tool in Canada.
2009 - Infiniti names Pro-Cut on-car resurfacing as preferred repair method for eliminating shudder
2010 - Nissan of Germany approves Pro-Cut and recommends it to dealers due to superior speed and efficiency.
Peugeot 2001 - Peugeot names Pro-Cut for warranty repairs.
2012 - Peugeot re-approves Pro-Cut for brake service.
Porsche 2004 - Approved for servicing Porsche 911.
Raybestos 2012 - Pro-Cut recommended for rotor service.
Subaru 1994 - Subaru picks Pro-Cut for dealers.
2003 - Subaru drop warranty time from 1.4 hrs to 1.0 hrs per axle.
Suzuki 2013 - Suzuki mandates Pro-Cut for their dealers in Mexico
Toyota/Lexus 2002 - Pro-Cut approved for warranty service
2009 - On-car lathe required for 2007-2010 Camry warranty repair
2009 - Toyota policy strongly recommends on-car machining
2012 - Toyota recommends Pro-Cut for Canada
VW

2007 - Pro-Cut named recommended tool by VW

2012 - VW re-releases recommendation to dealers for Routan

2012 - VW re-releases recommendation for all vehicles but Routan
The following manufacturers approve the use of the Pro-Cut lathe by their dealers but have not written specific bulletins naming Pro-Cut.
Ferrari Approved
Isuzu Approved
Kia Approved
Saturn Approved