Committee chairman Edward Leigh said that the absence of planned transition from children's to adult services meant adults were left fending for themselves.
The committee launched a report this week examining services for adults with autism, as well as levels of awareness of the condition and access to services.
Mr Leigh commented: ‘This lamentable situation is down to a chronic lack of information about what happens to many over-16s with autism, as well as poor planning, sharing of data and coordination of working between key individuals in health, social care, education and employment organisations.'
He added: ‘The DoH's proposed autism strategy, to be published by April 2010, is an excellent opportunity to set out how each of the recommendations by the National Audit Office and this committee is to be implemented and by when.'
