The Official Seal of the City of Naga, as finally approved by the Philippine Heraldry Committee, is essentially designed by Dr. Domingo Abella. Modifications made by the Committee affected the details of form and shape in line with an official standard and uniform pattern laid out by the Committee for all Official Seals in the country. No armorial device, however, was changed or eliminated.

The heraldic significance of the Coat of Arms of the City of Naga covers a span of 375 years – from 1573, the beginning of its recorded history, to 1948, the year of its inauguration as a regularly Chartered City by virtue of Republic Act No. 305. The years 1575, 1900 and 1946 are also recorded on the escutcheon because they mark important milestones, as it were, in the city’s existence.

Dates in Seal

• 1573-marks the year the Spaniards first arrived in Naga.

• 1575-the year Ciudad de Caceres (later Nueva Caceres) was established.

• 1948-Naga is Proclaimed Chartered City (Republic Act No. 305).

Shapes and Figures:

• Narra (Naga) tree on a rice field -represents the native settlement discovered by Captain Juan de Salcedo in 1573.

• Castle -dominates the right side representing the Spanish city of Caceres, the center of power over South Luzon.

• Triangle-represents the Katipunan. Naga was a focal point for rallying the region in the struggle against foreign domination.

• American eagle-symbolizes US rule.

The Coat of Arms of the Republic was approved by Commonwealth Act No. 731 and began the heraldic tradition in the Philippines. The former President Manuel L. Quezon issued the implementation of Executive Order No. 310 s. 1940 creating the Philippine Heraldry Committee to study and recommend the adoption of coat of arms for the different government offices, semi-government corporations, provinces and chartered cities. 

The symbolism:

• Coat of Arms - The official seal of the Senate of the Philippines was an adaptation of the Coat of Arms of the Republic and was approved on July 15, 1950. It was inevitable because the Senate is the legislative body of the state. The coat of arms of the republic represents three historical phases which are Philippines, Spanish, and American. 

• The Sun and the 3 Stars (The Chief) - The Philippine symbols are shown in the chief part of the coat of arms. The three mullets or 5-pointed stars represent the solidarity of Luzon, Visayas, and Mindanao. The eight-rayed Philippine Sun “in rayonnet” represent the provinces of Manila, Bulacan, Pampanga, Nueva Ecija, Morong, Laguna, Batangas, and Cavite, which under Martial Law by a decree of the Spanish government during the revolution of 1896.

• The Sampaguita Flower - The sampaguita with six sampaguita buds on each side represents the 12 regions of the country. The sampaguita flower symbolizes the honor and dignity, characteristics, which epitomize the Senate as an institution.

• The Motto and the 24 stars - Under the coat of arms is a scroll with a latin inscription “Legis Servitae Pax Fiat” which means “Law Serves Peace, Let It Be Done” which embodies the aspiration of the Senate to pass relevant laws in order to attain peace in the country. The 24 stars arranged in a circle surrounding the coat of arms represent the 24 elected Senators of the Senate of the Philippines. 

The new symbolic representation of Valenzuela is a simple, and respectful take by the designers (Ulysses H. Aguilar, and Jun Seno) on capturing the involuted connection of traditional, and modern-day demeanor within the city.

It was approved in 1989 by the Office of the President.

The seal symbolisms:

• Colors and design of the Philippine flag: The color and design inspired by our national flag reflects the innate nature of nationalism within the hearts of Valenzuelanos as they bear the name “Filipino” with pride, and love.

• Gavel: It manifests the symbol of authority that the local government of the city exhibits.

• Agriculture (Farmers’ hat, hoe, and field & Fisheries): The farmers’ hat, hoe, and field represents “BUKID” while the fisheries pose as the “BAYAN”; These two are Valenzuela’s imaginary traditional areas.

• Map of Valenzuela: This resembles a dove with wings outstretched— It pertains to a symbol of hope, and desire within the community's people for a peaceful and progressive years to come.    

• Three stars: Stars represent the 3 main branches of the local government (The City Government, Council, and Judicial Courts).

• Factory: It demonstrates the city’s prestige in the world of manufacturing industry.

• Scale: The scale illustrates the fairness of justice.

• Sampaguita Wreath: Leaves of the sampaguita wreath stands for the number of barangays (32 barangays) comprising the city of Valenzuela.

            District 1:

1. Arkong Bato

2. Balangkas

3. Bignay

4. Bisig

5. Canumay

6. Coloong

7. Dalandanan

8. Isla

9. Lawang Bato

10. Lingunan

11. Mabolo

12. Malanday

13. Malinta

14. Palasan

15. Pariancillo Villa

16. Pasolo

17. Poblacion

18. Polo

19. Punturin

20. Rincon

21. Tagalag

22. Veinte Reales

23. Wawang Pulo

District 2:

24. Gen. T. De Leon

25. Karuhatan

26. Bagbaguin

27. Mapulang Lupa

28. Marulas

29. Maysan

30. Parada

31. Paso de Blas

32. Ugong