10-45-19.3 Exemption of bulk water for domestic use. 10-45-20 Exemptions applied to taxable services. 10-45-20.1 Exemption of payments between members of controlled group--Exception. 10-45-20.2 Exemption of payments between members of controlled group--Reimbursement for third-party services to group. 10-45-20.3 Controlled group defined. 10-45-20.4