@midlandsbank/node-nacha/lib/accountTypeDictionary.js

NACHA ACH EFT File Parser/Formatter for CCD+ / PPD+ / CTX+

module.exports = {
  'C': '2', // Checking
  'S': '3', // Savings
  'G': '4', // General Ledger
  'L': '5', // Loan (optional, included for completeness)
}