IT contractors will be able to offer prospective employers more evidence of their technical skills and their security status under a new scheme.
The Professional Contractors' Group is offering to vet its members' qualifications, work experience and references under a programme called Quality People.
Members will have to renew their accreditation every three years to keep their skills and security status up to date. The PCG will verify members to the independent BS7858 security screening standard.
Demand for security-cleared IT contractors has increased in recent months. IT recruiter Hudson said that the daily rates for experienced and security-cleared IT contractors increased from £600 to £750 in the past 12 months.
Government departments have needed greater numbers of people with security clearance to work on criminal intelligence, criminal justice and critical national infrastructure projects.
Public sector employers have found it increasingly difficult to fill these posts because they are recruiting from the limited pool of people who are already cleared to work on government projects.
The PCG's new accreditation follows last month's launch of the Institute for Information Security Professionals. This new trade body requires professional qualifications from all its members.
Many employers relied on recruitment consultants to vet contractors' qualifications, work experience and security clearance, but few were as rigorous as they needed to be, said David Lacey, director of the Institute for Information Security Professionals.