Views are being sought on proposals to extend free bus travel for pensioners and disabled people in Scotland.
More people will be able to travel for nothing across Scotland
The Scottish Executive said the scheme was on track to go live in April 2006.
A consultation paper has been launched giving details of the plans, which offer unlimited Scotland-wide free bus travel at any time of the day.
Older and disabled islands residents will be entitled to two free return ferry trips a year under the scheme, which will cost up to £159m in 2006..
Scotland's local authorities currently have responsibility for running concessionary travel schemes.
The proposed national scheme will be operated by Transport Scotland, the new executive agency which is directly accountable to Scottish ministers.
The free travel would be available for people aged 60 and over and those whose mobility is reduced.
For those who need assistance, there would also be an entitlement for a companion to travel for nothing.
More than 500 key parties will be asked to comment on the proposals during the consultation period, which ends on 5 December.
Transport Minister Tavish Scott said the launch of the consultation was a "key milestone".
"Over a million people are set to benefit from the major expansion of existing concessionary bus services," he said.
"This free national bus travel scheme will provide greater travel choice as well as connecting people and communities up and down the country."
The closing date for the consultation is 5 December.