USDA and pork broth

My facility is trying to introduce pork broth for RTE soups. The pork broth would be in the vegetable soups. Wondering if we should have USDA in the facility if we are using pork broth for vegetable soup. Our facility only deals with vegetable and frozen seafood

It depends on how much pork is actually being used.

“relatively small proportions” of livestock ingredients are: 3 percent or less raw meat; less than 2 percent cooked meat or other portions of the carcass; or 30 percent or less fat, tallow or meat extract, alone or in combination.

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Some products that are exempted from USDA jurisdiction based on the criteria above include stocks or broths prepared with “relatively small amounts” of meat ...

Assuming you're getting the broth from a USDA inspected facility, you can probably get an exemption.