If you are using just a month and a year, you do not need a comma between them.
If you include a specific date after the month, then you do need a comma.
April 12, 2012
Here are a few other times you do not need a comma:
We need a new pump for Zone A injector QR-236.
That project was assigned to petroleum engineer Jack O’Reilly.
What is the shortest sentence in the English language?
(See answer below.)
Here is the Funny Typo of the Day:
FEED for this project will be done by an engineering contractor such as FLOUR.
FLOUR is the white wheat powder you use to bake bread and cakes.
FLUOR is the engineering contractor name, like the chemical name fluorine = F on the periodic chart of the elements.
Answer to Trivia Question:
Thanks to Peanut Gallery member Ted Lax in Oman for sending this in to celebrate National Grammar Day last month.
Famous Go Quote:
“Wherever you go, go with all your heart.”
– Confucius, Chinese philosopher, 551-479 BC