The history
What curbing actually means
For roughly forty years, New York told dog owners where to take their dogs. Then it stopped telling them, passed a law about something else, and the public quietly merged the two. What follows is the sequence, with the text of each rule.
The instruction
To curb a dog is to bring it to the curb — the edge of the street, above the gutter — and let it relieve itself there rather than on the sidewalk. That is the whole of it. The word is doing its literal work: curb, the granite edge, not curb, to restrain.
The instruction was posted. Signs went up in New York from the 1930s telling owners to bring the animal to the gutter at the street’s edge instead of the sidewalk. The first known batch — twenty-five signs — went out in 1937, distributed “at points around the city” and “in an effort to train owners.”[4] The reasoning was mechanical rather than moral: what lands in the gutter is what the street sweepers collect overnight.[4]
It was designed, and somebody signed it
The signs were not anonymous municipal furniture that accumulated by itself. They were commissioned work, part of a deliberate program to give the Sanitation Department a visual identity.
Sanitation Commissioner Samuel Kearing Jr. hired the designer Walter Kacik to rework the department — its logo, its trucks, and the “Keep New York Clean” sign, introduced between 1966 and 1968. Kacik is credited with the Curb Your Dog signs of the same decade.[7]
This matters for how the phrase should be read. Curbing is not folk wisdom that drifted into the language. Somebody was paid to think about it, someone approved it, a factory made the plates and a crew bolted them to buildings. It was policy, expressed as graphic design, installed at eye level across a city.
Then a different law arrived
In 1978, New York got the rule everyone now knows. It is a state law — Public Health Law § 1310, applying to cities of four hundred thousand or more — and it requires the owner to remove what the dog leaves behind.[3][5]
The owner must “remove any feces left by his or her dog on any sidewalk, gutter, street or other public area.” Up to $250. Guide, hearing and service dogs are exempt.[3]
Read it for what is absent. There is no curb in it as a destination — the curb and the gutter appear only in the list of places you must clean. It regulates the aftermath. It is entirely indifferent to where the dog went.
Two rules, then, pointing at two different moments: one about location, before; one about removal, after. They were never the same rule, and neither replaced the other.
The rule about location never left
Here is the part that surprises people. The city did not repeal the idea when the signs came down. New York City Health Code § 161.03 is in force today.
“A person who owns, possesses or controls a dog, cat or other animal shall not permit the animal to commit a nuisance on a sidewalk of any public place, on a floor, wall, stairway or roof of any public or private premises used in common by the public, or on a fence, wall or stairway of a building abutting on a public place.”[1]
And the term it turns on is defined two sections earlier, more broadly than most owners would guess.
“Animal nuisances shall include, but not be limited to, animal feces, urine, blood, body parts, carcasses, vomitus and pervasive odors…”[2]
So the location rule outlived its own signage by half a century, and it covers urine explicitly — the one thing no bag has ever addressed.
The sequence
- 1930s
Signs go up across New York telling owners to bring the dog to the gutter, not the sidewalk.[4]
- 1937
Twenty-five signs are distributed “at points around the city,” “in an effort to train owners.”[4]
- 1966–68
Walter Kacik redesigns the Sanitation Department for Commissioner Kearing. The instruction becomes a designed civic program.[7]
- 1978
A separate law requires removal. It says nothing about where the dog goes.[3]
- Late 1970s
The signage campaign ends. The phrase stays in circulation with nothing left to point at.[4]
- 2022
Reporting on the Sanitation Department’s own enforcement push calls the pickup requirement “the city’s ‘Curb Your Dog’ law, which was passed back in 1978.”[6]
- Today
§ 161.03 remains in force. Almost nobody has heard of it. Almost everybody carries a bag.
Half the job
The phrase survived because it is good English and easy to say. What it lost was its referent — the granite edge it was pointing at the whole time.
So the next time you tie off the bag and feel you have curbed your dog: you have complied with a state law from 1978, thoroughly and creditably. You have not curbed anything. That happens thirty seconds earlier, and it is the part with no equipment, no fine anybody has ever seen written, and no sign left standing to remind you.