diff --git a/frontend/package.json b/frontend/package.json
index fc04c0f..0a933a4 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "vite build",
     "serve": "vite preview",
-    "lint": "eslint --fix"
+    "lint": "eslint --fix",
+    "typecheck": "tsc --noEmit"
   },
   "license": "MIT",
   "devDependencies": {
diff --git a/frontend/src/certs/CustomLabelContext.tsx b/frontend/src/certs/CustomLabelContext.tsx
new file mode 100644
index 0000000..306c9c4
--- /dev/null
+++ b/frontend/src/certs/CustomLabelContext.tsx
@@ -0,0 +1,45 @@
+import { JSX, createContext, createMemo, createResource, useContext } from "solid-js";
+import { CustomLabel } from "../types/CustomLabel";
+import axios from "axios";
+
+export type CustomLabelsMap = {[custom_label_id: number]: CustomLabel};
+
+const CustomLabelContext = createContext<{
+    labels: () => CustomLabelsMap
+}>();
+
+export function CustomLabelProvider(props: {children: JSX.Element}) {
+    const [labels] = createResource(fetchAllLabels);
+
+    const customLabelData = {
+        labels: createMemo(() => labels() ?? {}),
+    };
+
+    return (
+        <CustomLabelContext.Provider value={customLabelData}>
+            {props.children}
+        </CustomLabelContext.Provider>
+    );
+}
+
+let cachedLabels: CustomLabelsMap | null = null;
+
+async function fetchAllLabels(useCache = true): Promise<CustomLabelsMap> {
+    if (useCache && cachedLabels !== null) {
+        return cachedLabels;
+    }
+
+    const result = await axios.get<Array<CustomLabel>>(`${import.meta.env.VITE_BACKEND_URL}/api/label`);
+
+    const map: CustomLabelsMap = {};
+    for (const label of result.data) {
+        map[label.custom_label_id] = label;
+    }
+
+    cachedLabels = map;
+    return map;
+}
+
+export function useCustomLabel() {
+    return useContext(CustomLabelContext);
+}
diff --git a/frontend/src/certs/NewRegister/CustomLabelSelect.tsx b/frontend/src/certs/NewRegister/CustomLabelSelect.tsx
index f0eec82..ea4008c 100644
--- a/frontend/src/certs/NewRegister/CustomLabelSelect.tsx
+++ b/frontend/src/certs/NewRegister/CustomLabelSelect.tsx
@@ -1,5 +1,5 @@
 import { createEffect, createSignal, For, onMount } from "solid-js";
-import { customLabelsMap } from "../../utils/allCustomLabels";
+import { useCustomLabel } from "../CustomLabelContext";
 
 export function CustomLabelSelect(props: {
     onChange: (value: string) => void,
@@ -8,6 +8,7 @@ export function CustomLabelSelect(props: {
     const [filter, setFilter] = createSignal("");
     const [selected, setSelected] = createSignal<boolean>(false);
     const [inputValue, setInputValue] = createSignal("");
+    const customLabels = useCustomLabel();
 
     const iHandler = (ev: KeyboardEvent & {currentTarget: HTMLInputElement, target: Element}) => {
         const inputEl = ev.target as HTMLInputElement;
@@ -49,9 +50,13 @@ export function CustomLabelSelect(props: {
 
 
     const filteredOptions = () => {
+        if (customLabels === undefined) {
+            return [];
+        }
+
         const filterText = filter();
 
-        return Object.entries(customLabelsMap()).filter(([, label]) => {
+        return Object.entries(customLabels.labels()).filter(([, label]) => {
             let courseText = label.custom_label_value.toLowerCase();
             courseText = courseText.replace("á", "a");
             courseText = courseText.replace("é", "e");
diff --git a/frontend/src/certs/NewRegister/ManualRegistration.tsx b/frontend/src/certs/NewRegister/ManualRegistration.tsx
index dd376f3..0c60f78 100644
--- a/frontend/src/certs/NewRegister/ManualRegistration.tsx
+++ b/frontend/src/certs/NewRegister/ManualRegistration.tsx
@@ -2,8 +2,8 @@ import { JSX, Show, createSignal } from "solid-js";
 import { SearchableSelect } from "./SearchableSelect";
 import { CustomLabelSelect } from "./CustomLabelSelect";
 import { RegistrationPreview } from ".";
-import { customLabelsMap } from "../../utils/allCustomLabels";
 import { useCourses } from "../CourseContext";
+import { useCustomLabel } from "../CustomLabelContext";
 
 type HTMLEventFn = JSX.EventHandlerUnion<HTMLFormElement, Event & {
     submitter: HTMLElement;
@@ -22,6 +22,7 @@ export function ManualRegistration(props: {
     const [isPreview, setIsPreview] = createSignal(false);
 
     const courses = useCourses();
+    const customLabels = useCustomLabel();
 
     let datePicker: HTMLInputElement | undefined;
 
@@ -44,7 +45,7 @@ export function ManualRegistration(props: {
 
         const subject = selectedCourseId();
 
-        if (datePicker === undefined) {
+        if (datePicker === undefined || customLabels === undefined || courses === undefined) {
             return;
         }
 
@@ -74,7 +75,7 @@ export function ManualRegistration(props: {
 
         const label = customLabel();
         // TODO: Refactor along with allCustomLabel.tsx
-        const custom_label_id = Object.entries(customLabelsMap()).find(([, v]) => (v.custom_label_value === label))?.[1].custom_label_id ?? -1;
+        const custom_label_id = Object.entries(customLabels.labels()).find(([, v]) => (v.custom_label_value === label))?.[1].custom_label_id ?? -1;
 
         const data: RegistrationPreview = {
             courseId: subject,
diff --git a/frontend/src/certs/Registers/RegisterElement.tsx b/frontend/src/certs/Registers/RegisterElement.tsx
index 5c4155d..eeb5198 100644
--- a/frontend/src/certs/Registers/RegisterElement.tsx
+++ b/frontend/src/certs/Registers/RegisterElement.tsx
@@ -2,7 +2,6 @@ import { Show, createMemo } from "solid-js";
 import { certGenerator } from "../../certGenerator";
 import { Person } from "../../types/Person";
 import { Register } from "../../types/Register";
-import { customLabelsMap } from "../../utils/allCustomLabels";
 import { DownloadSimpleIcon } from "../../icons/DownloadSimpleIcon";
 import { CaretRight } from "../../icons/CaretRight";
 import { IdentificationCardIcon } from "../../icons/IdentificationCardIcon";
@@ -14,6 +13,7 @@ import { genMatpelCarnet } from "../../carnetGenerator/matpel";
 import { genMachineryCarnet } from "../../carnetGenerator/machinery";
 import { Course } from "../../types/Course";
 import { useCourses } from "../CourseContext";
+import { CustomLabelsMap, useCustomLabel } from "../CustomLabelContext";
 
 const carnetEnabled = [
     "Matpel 3",
@@ -27,6 +27,7 @@ const carnetEnabled = [
 
 export function RegisterElement(props: {register: Register, person: Person, onClick: () => void}) {
     const courses = useCourses();
+    const customLabels = useCustomLabel();
 
     const dateComponents = () => {
         const [, year, month, day] = /(\d{4})-(\d{2})-(\d{2})/.exec(props.register.register_display_date) ?? [];
@@ -44,13 +45,18 @@ export function RegisterElement(props: {register: Register, person: Person, onCl
     };
 
     const customLabel = () => {
+        if (customLabels === undefined) {
+            return "~~Denominaciones no cargadas~~";
+        }
+
         const labelId = props.register.register_custom_label;
         if (labelId === 1) return "";
-        return customLabelsMap()[labelId]?.custom_label_value ?? "";
+
+        return customLabels.labels()[labelId]?.custom_label_value ?? "~~Denominación no encontrada~~";
     };
 
     const genCert = () => {
-        if (courses === undefined) {
+        if (courses === undefined || customLabels === undefined) {
             alert("Error. La lista de cursos no esta cargada.");
             return;
         }
@@ -58,7 +64,7 @@ export function RegisterElement(props: {register: Register, person: Person, onCl
         const person = props.person;
         const register = props.register;
 
-        generateCert(person, register, courses.idMap());
+        generateCert(person, register, courses.idMap(), customLabels.labels());
     };
 
     const generateable = () => {
@@ -164,7 +170,12 @@ export function RegisterElement(props: {register: Register, person: Person, onCl
     );
 }
 
-export function generateCert(person: Person, register: Register, coursesMap: {[course_id: number]: Course}) {
+export function generateCert(
+    person: Person,
+    register: Register,
+    coursesMap: {[course_id: number]: Course},
+    labelsMap: CustomLabelsMap,
+) {
     const courseN = coursesMap[register.register_course_id]?.course_name ?? "Curso no encontrado";
 
     const generator = certGenerator[courseN];
@@ -181,7 +192,7 @@ export function generateCert(person: Person, register: Register, coursesMap: {[c
     if (register.register_custom_label === 1) {
         certCustomLabel = "";
     } else {
-        const customLabel = customLabelsMap()[register.register_custom_label];
+        const customLabel = labelsMap[register.register_custom_label];
         if (customLabel === undefined) {
             alert(`Error. No se encontró la denominación con id ${register.register_custom_label}`);
             return;
diff --git a/frontend/src/certs/Registers/index.tsx b/frontend/src/certs/Registers/index.tsx
index 2665319..5fa6eea 100644
--- a/frontend/src/certs/Registers/index.tsx
+++ b/frontend/src/certs/Registers/index.tsx
@@ -8,6 +8,7 @@ import { JsonResult } from "../../types/JsonResult";
 import { LoadingIcon } from "../../icons/LoadingIcon";
 import { RegisterElement, generateCert } from "./RegisterElement";
 import { useCourses } from "../CourseContext";
+import { useCustomLabel } from "../CustomLabelContext";
 
 export function Registers(props: {person: Person | null, count: number}) {
     const [registers, setRegisters] = createSignal<Array<Register>>([]);
@@ -16,6 +17,7 @@ export function Registers(props: {person: Person | null, count: number}) {
     const [loading, setLoading] = createSignal(false);
     const [error, setError] = createSignal("");
     const courses = useCourses();
+    const customLabels = useCustomLabel();
 
     const loadRegisters = async() => {
         setLoading(true);
@@ -103,10 +105,10 @@ export function Registers(props: {person: Person | null, count: number}) {
 
     const [downButtonBg, setDownButtonBg] = createSignal("bg-c-primary text-c-on-primary");
     const downloadTodayCerts = () => {
-        if (props.person === null || courses === undefined) return;
+        if (props.person === null || courses === undefined || customLabels === undefined) return;
 
         todayRegisters().forEach((register) => {
-            generateCert(props.person!, register, courses.idMap());
+            generateCert(props.person!, register, courses.idMap(), customLabels.labels());
         });
 
         setDownButtonBg("bg-c-success text-c-on-success");
diff --git a/frontend/src/certs/index.tsx b/frontend/src/certs/index.tsx
index 4f30b19..de47dad 100644
--- a/frontend/src/certs/index.tsx
+++ b/frontend/src/certs/index.tsx
@@ -1,10 +1,13 @@
 import { CertsImpl } from "./CertsImpl";
 import { CoursesProvider } from "./CourseContext";
+import { CustomLabelProvider } from "./CustomLabelContext";
 
 export function Certs() {
     return (
         <CoursesProvider>
-            <CertsImpl />
+            <CustomLabelProvider>
+                <CertsImpl />
+            </CustomLabelProvider>
         </CoursesProvider>
     );
 }
diff --git a/frontend/src/utils/allCustomLabels.ts b/frontend/src/utils/allCustomLabels.ts
index 3c02807..90fc198 100644
--- a/frontend/src/utils/allCustomLabels.ts
+++ b/frontend/src/utils/allCustomLabels.ts
@@ -1,10 +1,7 @@
-import { createSignal } from "solid-js";
 import { CustomLabel } from "../types/CustomLabel";
 
 type CustomLabelsMap = {[k: number]: CustomLabel};
 
-// TODO: Refactor, this is inefficient
-export const [customLabelsMap, setCustomLabelsMap] = createSignal<{[k: number]: CustomLabel}>({});
 
 export function loadCustomLabels() {
     fetch(`${import.meta.env.VITE_BACKEND_URL}/api/label`)
@@ -14,7 +11,6 @@ export function loadCustomLabels() {
             for (const label of data) {
                 map[label.custom_label_id] = label;
             }
-            setCustomLabelsMap(map);
         });
 }