For a timely analysis of legal issues related to non-compete bans in Massachusetts and the United States, read Russell Beck`s Blog Fair Competition Law. In particular, the analysis notes two major errors: (1) the assumption that the ban on non-competition in California is at the root of Silicon Valley`s success; (2) interpret the evolution of research on the impact of competitive competitions as a finding that competition bans are bad for the economy; and (3) not to understand the unintended consequences of a non-competition clause, in particular the elimination of an important instrument for the protection of trade secrets. Jon Olafson on Colorado (#3 Denver) As a general rule, non-compete bans are not allowed in Colorado unless they are covered by one of four exceptions: (1) the protection of trade secrets; (2) the protection of the buyer when selling a business; (3) in relation to the recovery of education or training expenses, where the worker has only been employed for less than two years; or (4) with executives and executives and their specialized staff. In addition, all non-compete agreements in Colorado must be appropriate in terms of geographic and temporal scope. While the courts may amend or amend an agreement to make it enforceable, the court is not required to do so, even if the non-competition agreement contains a language that allows a court to do so. All non-compete agreements in Colorado must be carefully tailored to survive both legal and judicial review. There are special exceptions for doctors. Prohibitions of non-competition between physicians that restrict their right to practice medicine in the event of termination of employment are allowed as long as there is a provision allowing the physician-employee to pay his employer, regardless of the damages associated with their competition after the termination of employment. The statute also provides an additional exemption for patients with rare diseases. As a group, low-wage workers rarely have the extent of exposure to trade secrets or deep and broad relationships with customers who, given the compensation problems, could justify the application of competition law legislation.