Do not know if this is correct, but several sources had the same thing.
http://www.barefootsworld.net/uscivilflag.html
Currently, the Flag of the united States of America is defined as :
The American Flag of Peace of the united States of America is described as red, white and blue, with thirteen alternating red and white horizontal stripes, and a blue field (union) with 50 stars, one to represent each of the several States.
The Flag is proportional, (1 X 1.9) .
This proportion is easily determined by measuring the length (fly) and dividing by the measurement of the width (hoist). The length divided by the width should be very nearly 1.9.
If the flag is not to the correct 1 X 1.9 proportion, it is not an official Title 4 U.S.C. 1, 2 American Flag of Peace of the united States of America.
Title 4 U.S.C. 1, 2 and Presidential Executive Order 10834, found in the Federal Register at Vol. 24. No. 166, P.6365 - 6367.
Title 4 U.S.C. 3 provides that anything put on the title 4 U.S.C., 1, 2 American Flag such as gold fringe MUTILATES the Flag and carries a one-year prison term.
This is confirmed by the authority of title 36 U.S.C. 176 (g).
The gold fringe is a fourth color and represents "color of military law" jurisdiction and when placed on the title 4 U.S.C. 1, 2 Flag, mutilates the Flag and suspends the Constitution. (Refer to title 18 U.S.C. 242, see Black's Law Dictionary).
As provided by title 36 U.S.C. 173 and Army Regulation 840-10, chapter 2-1(b), the Flag of the united States of America is defined and described in title 4 U.S.C. 1, 2.
Civilians must use the title 4 U.S.C. 1, 2 Flag (see title 36 U.S.C. 173 and Army Regulation 840-10, chapter 2-7) and when military flags are displayed by Army Regulation 840-10, chapter 2 and title 36 U.S.C. 175.
I was looking to buy a lawful old glory, and this is all I could find so far:
http://www.thepowermall.com/title4flags/products.htm
http://www.title4flags.com/
Interesting; still looking.