To your point, the regulatory nonsense imposed by the over-arrogant entity and the bureaucratic government oversight invites the complexity of the answer.
However, the answer can be found through a link in the above linked doc...
From the linked doc...
1. What are the criteria to qualify as a Non-Professional Subscriber? The criteria to qualify as a Non-Professional Subscriber are outlined in the Non-Professional Subscriber Certification Form.
2. What is the definition of “small business entity?” Small business entity is not a defined term. The limiting factor is found in point “H” on the Non-Professional Self-Certification Form.
The link within to the Non-Professional Subscriber Certification Form...
https://www.cmegroup.com/market-dat...it-a-to-schedule-4-non-pro-self-cert-form.pdf
Per the form...
Non-Professional shall mean and include either (i) an individual, natural person Subscriber(s) who, or (ii) certain small business entities (limited liability companies, partnerships, trusts or corporations) that, receive and use Information (excluding any pit traded data),
POINT H
(h) be via a maximum of two trading terminals per Distributor, permissioned for Real-Time Information and capable of routing orders to the CME Globex Platform (an “Order Routing Device”).