Join between RA_CUSTOMER_TRX_ALL and RA_CUST_TRX_TYPES_ALL

When we join RA_CUSTOMER_TRX_ALL and RA_CUST_TRX_TYPES_ALL do we join only by cust_Trx_type_id or the right way is to join by cust_trx_type_id and org_id?

For one the clients, Im seeing same cust_trx_type_id across different org_ids.

Im seeing some strange data in the second client database - for a given cust_trx_type_id the org_id is different in RA_CUSTOMER_TRX_ALL and RA_CUST_TRX_TYPES_ALL. Can we have cust_trx_type_id in RA_CUSTOMER_TRX_ALL that is associated to different org_id in RA_CUST_TRX_TYPES_ALL? As per my understanding. this should not be possible based on the EBS org_id security design. Pls confirm.