What is the 2 3 4 rule for credit cards?

The 2/3/4 rule is a guideline, often associated with issuers like Bank of America, that recommends spacing out credit card applications. It suggests getting approved for no more than two new cards in a 30-day period, three in a 12-month period, or four in a 24-month period. This strategy helps manage hard inquiries on your credit report.