Councils will be able to draw upon a £4m fund to cover the bill for giving residents a rebate while they are out of their homes.
The councils will not be forced to introduce the payment exemptions, Number 10 said.
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Colo became a mother of three, grandmother of 16, great-grandmother of 12 and great-great-grandmother of three.
The district's director of homeland security has said officials are planning for 800,000 to 900,000 people to attend the ceremony.
The Supreme Court is set to decide on whether disabled travellers are legally entitled to have priority use of wheelchair spaces on buses.