The phrase "a scheme designed to" is correct and usable in written English.
It can be used when describing a plan or program that has been specifically created to achieve a particular goal or outcome.
Example: "The government introduced a scheme designed to reduce carbon emissions and promote renewable energy sources."
Alternatives: "a plan intended to" or "an initiative aimed at".
Crossrail, a scheme designed to improve London's rail system, traces its ancestry to 1974.
It is understood they had decided it would be inappropriate for them to benefit from a scheme designed to benefit hard-working frontline employees.
This may be controversial, with traditional institutions reluctant to pay into a scheme designed to bail out new, riskier operations that fail.
The three countries have called on the support of the EU civil protection mechanism, a scheme designed to offer practical assistance to countries overwhelmed by the situation.
It is that a scheme designed to support advocates and improve advocacy risks damaging the very strengths it was designed to enhance.
Iain Duncan Smith is bringing forward a policy that will reduce payments to some disabled people from a scheme designed to help them into work.
A dam can be a central structure in a multipurpose scheme designed to conserve water resources on a regional basis.
Assad and Follows, a volunteer mentor, had met as a result of a Keele scheme designed to proclaim the joys of higher education to school students who might never have given it a thought.
Prospective first-time buyers saving towards a deposit can take advantage of a new scheme designed to give their finances a lift next week.
Radio 3 hopes to discover the Jake Bugg of the classical world with the launch of BBC Introducing Classical, a talent scheme designed to give unsigned artists a platform.
Four days later the British government unveiled a potpourri of measures to stimulate lending, including a guarantee scheme designed to protect banks against losses on bad assets and an increase in its stake in Royal Bank of Scotland (RBS) to 70%.
