How heavy can you haul without a class a?

The statutory weight limit before a CDL is required is 26,000 lbs. for a single vehicle, or 36,000 lbs. for a combination truck and trailer, provided that the power unit does not have a GVWR in excess of 26,000 lbs. and the trailer does not have a GVWR in excess of 10,000 lbs.
Now, if you operate under certain exemptions and the conditions to which those exemptions apply (e.g., farm vehicle, emergency vehicle, military vehicle), then there isn't a statutory weight.
The statutory weight limit before a CDL is required is 26,000 lbs. for a single vehicle, or 36,000 lbs. for a combination truck and trailer, provided that the power unit does not have a GVWR in excess of 26,000 lbs. and the trailer does not have a GVWR in excess of 10,000 lbs.
Now, if you operate under certain exemptions and the conditions to which those exemptions apply (e.g., farm vehicle, emergency vehicle, military vehicle), then there isn't a statutory weight.