The Scottish Government says the move will make railway policing more accountable but critics include trade unions and BTP officers.
Air Gun Amnesty Begins
A national amnesty on air weapons begins on Monday ahead of a tightening of ownership rules.
Air gun owners are being asked to surrender them over the next three weeks before a legislation change.
From December 31 it will be illegal for anyone to possess or use an air weapon without a licence under the Air Weapon and Licensing (Scotland) Act 2015.
A total of 72 nominated police stations across Scotland will receive weapons before Sunday June 12 if owners do not wish to apply for a licence.
Assistant Chief Constable Mark Williams said: ''Take a moment or two to look out old or unwanted weapons and follow the advice on our website regarding how to safely transport them and where to take them.
''Getting rid of these unwanted air weapons will make our streets safer.``
Those wishing to apply for a certificate will be able to do so from July 1, in a similar manner to the current firearm and shotgun certification process.
The cost of the certificate has yet to be decided by ministers but the British Association of Shooting and Conservation has said it expects it to be less than the #79.50 shotgun licence.
BB guns are not classified as air weapons under the Act.
There were 182 air weapon offences in 2013-14, the equivalent of one every other day, according to the Scottish Government.
Wild animals and cats are the most common victims of air weapon crimes, with more than 100 reports of animals being targeted each year.
To find out where your nearest designated surrender station is go to www.scotland.police.uk/airweaponsurrender.
A building at Edinburgh Napier is having cladding removed, but students aren't being evacuated from the halls of residence.
A high-end jewellery store has been robbed in a raid at the five-star Gleneagles Hotel.
A review into adverse events at a maternity unit where some babies died has called for improvements in training and better family engagement.
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