I made this for a fellow on Talkbass so why not share it with the world
If you're on Talkbass feel free to hit me up.  Diabolusinmusic
Clutch - The Regulator from the album Blast Tyrant
As far as I am concerned this tab is %100 correct so I didn't bother to include my e-mail

Bass comes in @ 1:47
G: --------|----------|
D: --------|----------|
A: --------|-3--------|
D: 0~~~~ --|----5--0--|

Pre-Chorus
G|----------|--------------|----------------|
D|----------|--------------|----------------|
A|5-8-5-3-5-|--------------|3-5--5---3-5--5-|
D|----------|5-4-3-0-3-0-3-|----------------|

Chorus
G|----------------------|--------------------------|---------------|
D|---------10---12-10---|---------10----12-10------|---------------|
A|---10/12---12------12-|----10/12---12-------12-10|3-5--5--3-5--5-|
D|10--------------------|10------------------------|---------------|

Verse after chorus
G|-----------|--------------|
D|-----------|--------------|
A|-----------|-3------------|
D|0---3---5--|----5----0----|

Outro (about 5 mins)
G|-----------------------|
D|-----------------------|
A|3-5---5----------------|
D|----------6666--55-3-0-|



The parts go in order, until the 2nd verse goes back into the pre-chorus, I think you 
can figure it out. I included the last repeat of the last riff before the outro just so 
you can see it a little easier.