Ohio Plumbing Code and amendments in PDF from the State of Ohio: https://www.com.ohio.gov/dico/BBS/NonResidentialBuildingCodes.aspx#OPC
Alternate free online source of the 2015 International Plumbing Code with State modifications https://up.codes/code/international-plumbing-code-ipc-2015
Alternate free online Ohio Code: https://up.codes/viewer/ohio/ipc-2015
Outdoor temperature ranges in Ohio
Grease Interceptor Sizing Calculator
www.jrscidt.com
Grease Interceptor Sizing To Ensure Proper Protection Of Infrastructure https://www.phcppros.com/articles/8910-grease-interceptor-sizing-to-ensure-proper-protection-of-infrastructure
Schier Interceptors
https://schierproducts.com/
Canplas Interceptors
http://canplas.com/endura/
Interceptor Whisperer
https://www.iwconsultingservice.com/
ICC Evaluation Services
https://icc-es.org/pmg-listing-program/listing-directory/
IAPMO R & T
http://pld.iapmo.org/