National Pet ID Week in US
National Pet ID Week in US is held on April 20. Third Full Week of April starting with Sunday. This event in the second decade of the month April is annual. 
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94% of pet owners say their animal pal makes them smile more than once a day. A full 80% of pet parents believe Pet ID of crucial importance. Losing a pet is any owner’s nightmare, so you should do everything you can to ensure your treasured dogs and cats are properly identified. Yet only 33% make sure they always protect their pets in one of these priority ways.
Of course, tags can fall off or be taken off, so having a microchip as well provides a safety net. The tiny electronic device is injected under your pet's skin. Then, when a shelter, veterinarian or animal-control officer waves a scanner over the area, they’re able to find the pet’s unique identification number. When they compare the number with a database, the pet’s owner can be contacted.
Similar holidays and events, festivals and interesting facts
Pet Owners Day on April 19
International Cat Lady Day on April 19
Dancing Cow Day in Denmark on April 20 (On the third Sunday of April);
Animal Cruelty/Human Violence Awareness Week in USA on April 20 (Humane Society of the US – third week in April);
Bulldogs Are Beautiful Day on April 21 (They are related to the Asiatic Mastiff, which, according to historical records, lived in Mesopotamia around 4,000 BC);
National Lost Dog Awareness Day in US on April 23
International Day Against Vivisection on April 24
National Scoop the Poop Week in USA on April 24