Rating
A judgment by a rating agency as to the credit quality of a bond.
High-risk debt Securities with low Ratings, if any.
A judgment by a rating agency as to the credit quality of a bond.

Rule promulgated under the 1934 Exchange Act and adopted by the SEC in 1989 to establish standards for the procurement and dissemination of disclosure documents by underwriters as a means of enhancing the accuracy and timeliness of disclosure to municipal securities investors.