Lynn Stafford and Adam Goldstein, Stag USA, presented on vehicle conversions at the Badger Sheriff's Association Conference on December 10, 2014 at the Radisson Paper Valley Hotel in Appleton, WI.

2. Who is STAG?
• International Alternative
Fuel Systems Manufacturer
• Founded in 1986
• Systems installed in over
2,000,000 vehicles in 41
countries worldwide

4. What We Do
• Research & Development
• Extensive Component
Testing
• Compliance with
Regulatory Environments
• Vertically Integrated
Manufacturing

5. Specialization
• Extreme Duty
• Purpose Designed Police
Duty

6. Green works
for Blue

7. Design
Above and Beyond
Compliance

8. Safety

9. Safety
Hydraulic Cycle
Pressure Testing
Low Temperature
Pressure Cycling
Drop Impact Testing
Bonfire Test
Environmental
Exposure Test
Damage
Tolerance/Gunfire
Test
Vibration Test
Hydraulic Crush Test
Drag Test
CNG tanks are the strongest
and safest component on the
vehicle

10. Physical Properties
Comparison of Fuels

11. Safety
Quote from the EPA (EPA420-F-00-
003):
“Although CNG is a flammable
gas, it has a narrow flammability
range, making it an inherently
safe fuel. Strict safety standards
make CNG vehicles as safe as
gasoline-powered vehicles. In
the event of a spill or accidental
release, CNG poses no threat to
land or water; it is nontoxic.
CNG also disperses rapidly,
minimizing ignition risk relative
to gasoline.”
Nationwide Insurance, in looking at the
safety of natural gas buses in a fleet,
concluded as long ago as1992 that:
“…the natural gas powered vehicles will
be the safest vehicles in your fleet and
(we) have no
reservations about insuring them.”
(Palmer, Pat, Nationwide Insurance, letter to Kenneth E. Bauman
Bus, Inc., 09/10/92)

12. Reliable
Bi-Fuel
No range anxiety

13. Environmentally
Responsible
CNG Reduces
Greenhouse gas
emissions by 20 to
30%
CNG produces 40%
less CO2
CNG vehicles
require fewer oil
changes

14. Economically
Powerful
If you could eliminate 75%
of your fuel cost, what
would you do with the
money??

15. FAQs & Concerns
 How will a CNG system
affect the
manufacturer’s
warranty?
 Are STAG CNG systems
certified by the EPA?
 How does the
equipment affect
storage?
 How does natural gas
affect engine
performance?

18. From: "Pursifull, Ross (R.D.)" <rpursifu@ford.com>
Date: 29 Sep 2014 22:11:30 CEST
To: "adam.skrzypko@ac.com.pl" <adam.skrzypko@ac.com.pl>
Subject: EPA Certificate of Compliance for CNG conversion on
Ford vehicles
I see that you got an EPA Certificate of Compliance for CNG
conversion on Ford vehicles. I’d like to hear about your sales,
pricing, technical approach. I have some industry knowledge and
perhaps we can discuss.
http://www.epa.gov/otaq/consumer/fuels/altfuels/documents/certified
-conversions.xls
Fuel at home for $0.98 per gallon. CNG4ME
Ross Pursifull
Powertrain Controls Research & Advanced Engineering
Ford Motor Company
Research and Innovation Center 3135.G
2101 Village Road
Dearborn, MI USA 48121
(313) 390-6750