The Office of the Municipal Mayor provides leadership and governance to ensure efficient public service delivery. It facilitates transparent communication with constituents, implements local policies focused on infrastructure, health, education, social welfare, tourism, and economic growth, and coordinates with national agencies to secure resources for municipal programs.

The Human Resource Management Office is responsible for developing a comprehensive and balanced personnel system, implementing government-wide personnel management programs, and maintaining effective communication with the Civil Service Commission.

Responsible for formulating integrated economic, social, physical, and other development plans and policies for consideration of the local government development council.

Primarily responsible for the civil registration program pursuant to the civil registry law, the Civil Code, and other pertinent laws, rules, and regulations issued to implement them.

Mandated to deliver basic services in local budget administration including budget process, policies, fiscal financial control, proper allocation and mobilization of resources, and effective management of public expenditures.

Oversees accounting and internal auditing functions, manages all cash inflows and outflows, prepares financial statements for the municipality and its 31 barangays, and conducts pre-audit reviews of disbursements before payments are processed.

Takes custody of and exercises proper management of LGU funds. Services include: collection of Real Property Tax and Business Taxes; issuance of Community Tax Certificates, Real Property Tax Clearances, and treasury certifications; release of checks; and sealing of weights and measures.

Ensures all laws governing appraisal and assessment of real properties for taxation are properly executed. Prepares and maintains a system of tax mapping, conducts physical surveys, and issues certified copies of assessment records upon request.

Formulates and implements health policies, plans, and programs for the community. Directs sanitary inspections, conducts health information campaigns, and leads frontline health services delivery especially during natural and man-made disasters.

Accountable for all properties owned by the LGU, supervises janitorial and security services, maintains government buildings, manages archival and records, and enforces policies on records creation, maintenance, and disposal.

Committed to providing quality Social Welfare and Development programs for poor, marginalized, and vulnerable sectors including children, youth, women, persons with disabilities, and older persons of Tiaong.

Provides agricultural services through extension works and development of Rural Based Organizations. Offers farmer registration, certifications on agricultural matters, provision of planting materials, linkages to line agencies, and anti-rabies vaccination.

Primarily responsible for the protection and management of the environment and natural resources of the municipality. Implements environmental laws, rules and regulations, and existing municipal ordinances through various programs, projects, and activities.

Responsible for planning, coordinating, regulating, and implementing agricultural, fisheries, and biosystems engineering, mechanization, and infrastructure programs and projects at the municipal level.

Administers and implements infrastructure development and public works projects. Acts as Local Building Official, responsible for enforcing the National Building Code provisions, including the processing and issuance of Building Permits and Certificates of Occupancy.

Dedicated to ensuring community safety and resilience through disaster preparedness, response, and recovery services. Implements risk reduction measures, coordinates emergency operations, conducts public education on disaster resilience, and manages rescue and medical response.

In charge of operating the Municipal Public Market and supervising market vendors and stall owners. Services include issuance of cash tickets and certifications, collection of rental and slaughter fees, receiving applications to lease market stalls, and sealing of metric instruments.