Lobbying is regulated by the Federal Lobbying Act of 1946 which is to oversee lobbying so it doesn't get out of hand. Does it do the job? Most people do not think so for those that oversee the group formed by the act can also be persuaded through lobbying. The U.S.
House of Representatives and the Senate is where the laws are created which become policy and regulations. Those policies and regulations are therefore carried out. Lobbyists influence the laws and regulations and are to be regulated by the federal level act. But they really don't seem to be very regulated.
There are ways around everything and this is just one more hurdle for them to cross to basically get their way. It is somewhat of a joke, in other words.