Emergent BioSolutions Inc. (NYSE:EBS) announced today that it has received a favorable private letter ruling from the Internal Revenue Service related to the planned spin-off of its biosciences business. Subject to its terms, the ruling confirms that certain aspects of the planned transaction, including those related to the qualification of the business as an active trade or business, will not preclude the spin-off from qualifying as tax-free to Emergent and its stockholders.