Pipe sizes for drain, vent, and distances for Colorado Springs, Colorado

Questions on venting pipe sizes for Colorado Springs, Colorado:

Hello:

Can someone please tell met the minimum pipe and vent sizes for the following:

Bathroom sinks with two sinks:
Minimum Drain size = Minimum Vent size =?
Maximum distance of vent from P-trap

Max Drain size = Max Vent size =?
Maximum distance of vent from P-trap

Kitchen with two sinks:
Minimum Drain size = Minimum Vent size =?
Maximum distance of vent from P-trap

Max Drain size = Max Vent size =?
Maximum distance of vent from P-trap


Laundry room with two sinks and washer:
Minimum Drain size = Minimum Vent size =?
Maximum distance of vent from P-trap

Max Drain size = Max Vent size =?
Maximum distance of vent from P-trap

Toilet:
Minimum Drain size = Minimum Vent size =?
Maximum distance of vent from P-trap

Max Drain size = Max Vent size =?
Maximum distance of vent from P-trap

Shower & bathtub:
Minimum Drain size = Minimum Vent size =?
Maximum distance of vent from P-trap

Max Drain size = Max Vent size =?
Maximum distance of vent from P-trap


How do you upsize the vent pipe size when you combine as follows:

1) Dual bathroom sinks, shower, bathtub and toilet?

2) Single bathroom sinks, shower, and toilet?

Someone told me that if you use a 3" pipe for floor drain, venting is not required. Is this correct?

When the vent reach the roof, do we have to change the size of vent pipe?


Is ther a webstie where I can see a table for vent size / drain size, and vent to p-trap distances
for UPC standards or international standards?

Thanks,
kind regards,
HP

Code Q's

Us plbrs, spend 4 to 5 yrs in an apprenticship program to gain our knowledge of plumbing, and most of us are not willing to give it up, to a DIYer; esp. all the knowledge you are looking for. Because of the scope of your Q's, it sounds to us like you are attempting a job that should be done by a licensed journeyman. So please call one, and when the job is done it will be to Code, insured, and guaranteed for a standard length of time (prob. a year).

Good Luck,
Rudy