NSW Deputy Premier Paul Toole said it was important for drivers to remember that riders and horse-drawn vehicles have the same rights and responsibilities as other road users.

""Horses and other livestock aren't uncommon on roads in the bush, and this campaign reminds everyone to share the road safely," said Mr Toole, who is also the minister for regional transport and roads.

"Drivers should slow down and allow plenty of room when passing a horse, whether it's being ridden, led or pulling a vehicle.

"Horses are easily spooked and can be unpredictable, so don't use your horn or rev your engine."

Mr Toole said riders also needed to keep in mind that horses were considered a vehicle when on roads and riders needed to ensure they obeyed traffic rules.

"Ride on the left-hand side in the same direction as traffic, avoid tight corners or crests and try to keep a good line of sight."

In the past 10 years, nine fatalities have been recorded in NSW after accidents involving a ridden horse, Mr Toole said.

There were also 54 casualty crashes involving a riderless horse being struck by a vehicle, which resulted in the deaths of two people and serious injuries to 15 others.

Stephanie Stanhope, the NSW President of the Country Women's Association, said a recent incident which saw a rider injured and their horse euthanised after being hit by a vehicle served as a reminder for people using country roads to follow road rules.

""We are seeing too many close calls and often these animals are a major part of a rider's livelihood, so we ask that motorists are respectful when sharing the road with horse riders and horse-drawn vehicles to avoid any unfortunate incidents," Ms Stanhope said.

"Riders should also be aware of their surroundings, including traffic, pedestrians, road surfaces and changing weather conditions, and, if possible, ride during daylight hours.

"It is also good practice to avoid tight corners or crests and instead ride on roads where motorists have a good line of sight, and the wearing of high visibility or bright-coloured clothing and a helmet that meets Australian standards is strongly recommended."