Limited Partnerships that are registered with the Securities and Exchange Commission(SEC) for the purpose of public trading are called Public Limited Partnerships (Public LPs).
The general public can buy shares in Public LPs through brokers and dealers. Because they do offer trade, they are classified as "Publicly Traded" partnerships.
Other forms of Public LPs may be registered with the SEC, but do not participate in trade exchange with the public. These partnerships are known as Unlisted, or Non Exchange Traded Limited Partnerships, and classified as "Public Reporting" partnerships.

