The City of St. Louis Department of Health has revised their guidelines for horse-drawn carriages in the city.

According to Health Commissioner’s Order #1003, no horse may be used to draw a carriage for hire in the City of St. Louis wen the National Weather Service determines that the actual air temperature at Lambert International Airport is 93 degrees of above, or the heat index is above 100 degrees.

"Due to concerns for the health, safety, and welfare of the horses and individuals operating the rides, the temperature threshold for discontinuing rides has been reduced from 96 degrees Fahrenheit to 93 degrees Fahrenheit," the City of St. Louis Department of Health said in a press release.

Animal care officers will be monitoring the streets to ensure carriage operations are inactive.

Related: No one is regulating horse-drawn carriage rules