Oops, it doesn't look like 'car seat safe check day' is a national day..

Other days

Cuddle Up Day

Embarrass Your Best Friend Day

Gum Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Tulip Day

Chocolate Milkshake Day

Nae Nae Day

My Little Pony Day

Self Appreciation Day

Stud Day