(a) Every labor relations consultant shall maintain detailed and accurate books and records of account which shall include, without limitation:

1. (1) Gross receipts

   1. (i) the amount and date of each receipt
   2. (ii) the source of each receipt
   3. (iii) the occasion or reason for each receipt
2. (2) Bank statements
3. (3) Duplicate deposit slips or record book of bank deposits

4. (4) Gross disbursements

   1. (i) the amount and date of each disbursement
   2. (ii) the name of the recipient of each disbursement
   3. (iii) the reason for each disbursement
5. (5) Cancelled checks
6. (6) Invoices
7. (7) Petty cash vouchers
8. (8) Copies of agreements in relation to his activities concerning employee organizing or collective bargaining.