5 CFR §1304.4606

1. (a)General.
   1. (1)Communications made solely to furnish scientific or technological information are exempt from these prohibitions.
   2. (2)A former Government employee may be exempted from the restrictions on post-employment practices if the Deputy Director of OMB, in consultation with the Director of the Office of Government Ethics, executes a certification that is published in the Federal Register. The certification shall state that the former Government employee has outstanding qualifications in a scientific, technological or other technical discipline; is acting with respect to a particular matter which requires such qualifications; and the national interest would be served by his participation.
2. (b)Specific. The one-year bar shall not apply to a former Senior Employee's representation on new matters if the former Senior Employee is:
   1. (1)An elected State or local government official, who is acting on behalf of such government; or
   2. (2)Regularly employed by or acting on behalf of an agency or instrumentality of a State or local government; an accredited, degree-granting institution of higher education; or a non-profit hospital or medical research organization.