Yechiel Michel Epstein,
Translation:Arukh ha-Shulchan…
“ Section 57 It is therefore no wonder that the accepted practice in our city is not to bring meat from outside the city, and in fact we consider non kosher (‘Trief’) meat and utensils brought from outside, though outside the city they are permitted. This is custom found in many locales, and it is a proper way to protect from many potential problems, as is well known. This of course requires an explicit enactment that prohibits all meat from outside, considering it non-kosher. ”
