"All of our technology partners know they are not permitted to use MCPS testimonials in advertising." Superintendent Jerry Weast, January 7, 2009 in answer to Board of Education Question #9.As reported here and here the MCPS Logo and testimonials have, in fact, been used by vendors in advertisements readily available on the Internet.
And below is a third example of a private company using the MCPS Logo to advertise their product. In addition, this advertisement includes a testimonial from Supertintendent Weast (see page 2, right hand column).
Jerry Weast, from the foreword to Getting it Right-
Why Good School Communication Matters, 2008