By Xavier Francis (May 31, 2018, 3:54 PM EDT) -- The B-1, or business, visa is perhaps the most widely used and easily accessible visa for companies seeking to have their global workforce enter the United States. Many companies rely on this visa to facilitate commercial activities and transactions in the U.S. However, the B-1 visa is also susceptible to misuse as demonstrated by a series of investigations and charges levied against several companies in recent years. Misuse can also be attributed to the lack of clarity in current regulations, specifically as it relates to distinguishing "business" from "work". Although the distinction between business and work can be black and white in some cases, many instances fall within a grey area that potentially expose companies to compliance issues. Given the current immigration climate and the administration's continued effort to restrict the movement of highly skilled migrants, it might only be a matter of time before other types of nonimmigrant visas are targeted; the B-1 visa program is no exception. Thus, companies and professionals that rely on the B-1 visa should take extra measures to ensure compliance with current regulations....