NICE Guidelines:

In May 2009, The National Institute for Health and Clinical Excellence (NICE) published new guidelines to improve the early management of persistent non-specific low back pain. 

The guidelines recommend what care and advice the NHS should offer to people affected by low back pain. NICE assessed the effectiveness, safety and cost-effectiveness of available treatments and one recommendation is to offer a course of manual therapy, including spinal manipulation, spinal mobilisation and massage. 

This treatment may be provided by a range of health professionals, including chiropractors as spinal manipulation is part of the package of care that chiropractors can offer. 

http://www.nice.org.uk/CG88