Eric Abetz is using an opinion piece to call for current workers' weekend penalties to be preserved.
The Fair Work Commision last month ruled Sunday penalty rates paid in retail, fast food and hospitality will be reduced from their existing levels
Warning of the perils of an anti-WorkChoices style campaign from Labor and unions, the Tasmanian Liberal senator says entitlements of current workers should be 'grandfathered', and that lower penalty rates should only be applied to new workers.
"This approach would ensure that 'no worker is worse off' while allowing new opportunities for the unemployed and especially for young unemployed people.
"It would mean no existing worker would have their income or household budget adversely impacted while supporting small business and assisting the unemployed," Senator Abetz said.
The Commission's ruling last month did not support maintaining current conditions.
Senator Abetz says he supports the Fair Work Commission's ruling on the grounds it will boost small business.