AASHTO M288 Geotextiles

American Association of State Highway and Transportation Officials (AASHTO) provides geotextile requirements for all categories:

AASHTO M288-21 Product Selection Guide
Application	Class 1		Class 2		Class 3
	Woven	Nonwoven	Woven	Nonwoven	Woven	Nonwoven
	Elongation < 50%	Elongation ≥ 50%	Elongation < 50%	Elongation ≥ 50%	Elongation < 50%	Elongation ≥ 50%
Subsurface Drainage
% Fines
< 15%	EP-404 NTPEP Listed	N08 NTPEP Listed	EP-404 NTPEP Listed	N06 NTPEP Listed	EP-12 NTPEP Listed	N04.5 NTPEP Listed
15% to 50%	N/A		EP NTPEP Listed		EP NTPEP Listed
> 50%	N/A		EP NTPEP Listed		EP NTPEP Listed
Separation	HD NTPEP Listed	N08 NTPEP Listed	HD NTPEP Listed	N06 NTPEP Listed	GS NTPEP Listed	N04.5 NTPEP Listed
Stabilization	HD NTPEP Listed	N08 NTPEP Listed	HD NTPEP Listed	HD NTPEP Listed	GS NTPEP Listed	N04.5 NTPEP Listed
Permanent Erosion Control
% Fines
< 15%	EP-404 NTPEP Listed	N08 NTPEP Listed	EP-404 NTPEP Listed	N06 NTPEP Listed	EP-404 NTPEP Listed	N04.5 NTPEP Listed
15% to 50%	N/A		EP NTPEP Listed		EP NTPEP Listed
> 50%	N/A		EP NTPEP Listed		EP NTPEP Listed

Paving Fabric	Type 2 OLI NTPEP Listed

Subgrade Stabilization Class 4	4A	4B	4C	4D
	Woven	Geogrid
	HPG-57,HM-58 NTPEP Listed	SX3030	SX2020,RX1200	SX1515,RX1100