Trainers will have to shift their gaze to Victorian race meetings after the announcement from Racing NSW last week.
The governing body has prohibited the travel of horses from Victoria to any NSW-based racing stable.
Racing NSW announced its updated protocols on Wednesday.
“Effective July 8, 2020, Racing NSW has prohibited the transfer of horses from Victoria to any NSW racing stable, licensed premises or racecourse,” a statement read.
“The previous protocols which permitted the transfer of horses from Victoria have now been rescinded until further notice.”
Horses cannot be transferred between the two states, which is set to impact this year's Spring Racing Carnival.
The latest updates also impact trainers and stable staff, who have been told they must self-isolate for 14 days if they enter NSW, even if they hold a work permit.
“Any person (including essential personnel) that resides in Victoria or has travelled to Victoria (irrespective of whether a work permit has been issued) may attend a racecourse or licensed premises only after they complete a period of 14 days isolation/quarantine in NSW away from a racecourse or licensed premises,” the statement read.
Tuesday's race meeting scheduled for Albury was shifted to Wagga, while a meeting scheduled for Corowa on July 29 will also be moved to Wagga.
● The announcement from Racing NSW followed Racing Victoria's decision to update its restrictions on horse owners attending meetings.
Owners who reside in the lockdown areas of metropolitan Melbourne and Mitchell Shire are not permitted to return to race tracks.
No owners are allowed to attend race meetings held in those areas.