diff --git a/frontend/src/OnlineClassroom/ClassroomRegistration.tsx b/frontend/src/OnlineClassroom/ClassroomRegistration.tsx
new file mode 100644
index 0000000..e9e15fd
--- /dev/null
+++ b/frontend/src/OnlineClassroom/ClassroomRegistration.tsx
@@ -0,0 +1,42 @@
+import { createSignal } from "solid-js";
+import { FilledCard } from "../components/FilledCard";
+import { ClassroomRegistrationPreview } from "./ClassroomRegistrationPreview";
+import { ClassroomSearchableSelect } from "./ClassroomSearchableSelect";
+import { ClassroomCourseValue } from "../types/ClassroomCourse";
+
+export function ClassroomRegistration() {
+    const [selections, setSelections] = createSignal<Array<ClassroomCourseValue>>([]);
+
+    return (
+        <div class="h-screen overflow-y-scroll">
+            <FilledCard class="border border-c-outline overflow-hidden">
+                <h2 class="p-3 font-bold text-xl">Registrar cursos</h2>
+
+                <div class="bg-c-surface p-4 h-[23rem]">
+                    <ManualClassroomRegistration
+                        onAdd={(x) => setSelections((s) => ([...s, x]))}
+                    />
+                </div>
+            </FilledCard>
+
+            <ClassroomRegistrationPreview
+                selections={selections()}
+                deleteRegister={(course_key) => setSelections((course) => course.filter((v) => v !== course_key))}
+            />
+        </div>
+    );
+}
+
+
+function ManualClassroomRegistration(props: {onAdd: (k: ClassroomCourseValue) => void}) {
+    return (
+        <form>
+            <p>Haz click en un curso para agregarlo</p>
+            <br />
+
+            <ClassroomSearchableSelect
+                onAdd={props.onAdd}
+            />
+        </form>
+    );
+}
diff --git a/frontend/src/OnlineClassroom/ClassroomRegistrationPreview.tsx b/frontend/src/OnlineClassroom/ClassroomRegistrationPreview.tsx
new file mode 100644
index 0000000..9710f7f
--- /dev/null
+++ b/frontend/src/OnlineClassroom/ClassroomRegistrationPreview.tsx
@@ -0,0 +1,62 @@
+import { For, createMemo } from "solid-js";
+import { FilledCard } from "../components/FilledCard";
+import { LoadingIcon } from "../icons/LoadingIcon";
+import { LoadingStatus, useLoading } from "../utils/functions";
+import { ClassroomCourseValue, allClassrooomCourses } from "../types/ClassroomCourse";
+import { XIcon } from "../icons/XIcon";
+
+export function ClassroomRegistrationPreview(props: {
+    selections: Array<ClassroomCourseValue>,
+    deleteRegister: (k: string) => void,
+}) {
+    const {status} = useLoading();
+
+    const loading = createMemo(() => status() === LoadingStatus.Loading);
+
+    const submit = async() => {
+    };
+
+    return (
+        <FilledCard class="border border-c-outline overflow-hidden">
+            <h2 class="p-4 font-bold text-xl">Confirmar registro</h2>
+            <div class="bg-c-surface p-4">
+                <For each={props.selections}>
+                    {(course_key) => (
+                        <div class="grid grid-cols-[auto_1.5rem] py-1 px-2 rounded-md border border-c-outline my-1">
+                            <span class="font-mono">
+                                {allClassrooomCourses[course_key]}
+                            </span>
+                            <button
+                                class="hover:bg-c-surface-variant rounded-md"
+                                onclick={() => props.deleteRegister(course_key)}
+                            >
+                                <XIcon fill="var(--c-on-surface)" />
+                            </button>
+                        </div>
+                    )}
+                </For>
+
+                <button
+                    class="bg-c-primary text-c-on-primary px-4 py-2 rounded-full cursor-pointer mt-4
+                            disabled:opacity-50 disabled:cursor-not-allowed relative"
+                    type="button"
+                    disabled={props.selections.length === 0 || loading()}
+                    onclick={submit}
+                >
+                    <span
+                        class="absolute top-1 left-2"
+                        style={{display: loading() ? "inline-block" : "none"}}
+                    >
+                        <LoadingIcon
+                            class="animate-spin"
+                            fill="var(--c-primary-container)"
+                        />
+                    </span>
+                    <span class="ml-6">
+                        Matricular en {props.selections.length} cursos
+                    </span>
+                </button>
+            </div>
+        </FilledCard>
+    );
+}
diff --git a/frontend/src/OnlineClassroom/ClassroomSearchableSelect.tsx b/frontend/src/OnlineClassroom/ClassroomSearchableSelect.tsx
new file mode 100644
index 0000000..8575874
--- /dev/null
+++ b/frontend/src/OnlineClassroom/ClassroomSearchableSelect.tsx
@@ -0,0 +1,96 @@
+import { createSignal, For } from "solid-js";
+import { isServer } from "solid-js/web";
+import { allClassrooomCourses, ClassroomCourseValue } from "../types/ClassroomCourse";
+
+export function ClassroomSearchableSelect(props: {
+    onAdd: (key: ClassroomCourseValue) => void,
+}) {
+    const [filter, setFilter] = createSignal("");
+    const [inputValue, setInputValue] = createSignal("");
+
+    const iHandler = (ev: KeyboardEvent & {currentTarget: HTMLInputElement, target: Element}) => {
+        const inputEl = ev.target as HTMLInputElement;
+
+        let filter: string = inputEl.value.toLowerCase();
+        filter = filter.replace("á", "a");
+        filter = filter.replace("é", "e");
+        filter = filter.replace("í", "i");
+        filter = filter.replace("ó", "o");
+        filter = filter.replace("ú", "u");
+        setFilter(filter);
+    };
+
+    const selectCourse = (key: ClassroomCourseValue) => {
+        props.onAdd(key);
+        setFilter("");
+        setInputValue("");
+    };
+
+    const inputElement = (
+        <input
+            id="create-subject"
+            class={`bg-c-background text-c-on-background
+                    border-2 rounded-tl rounded-tr px-2 py-1
+                    w-full
+                    invalid:border-c-error invalid:text-c-error
+                    focus:border-c-primary outline-none
+                    disabled:opacity-50 disabled:cursor-not-allowed`}
+            type="text"
+            placeholder="Curso"
+            onkeyup={iHandler}
+            value={inputValue()}
+            onchange={(ev) => setInputValue(ev.target.value)}
+            autocomplete="off"
+        />
+    );
+
+    if (!isServer) {
+        (inputElement as HTMLInputElement).addEventListener("keydown", (ev) => {
+            if (ev.code === "Enter") {
+                ev.preventDefault();
+            }
+        });
+    }
+
+    const filteredOptions = () => {
+        const filterText = filter();
+
+        return Object.entries(allClassrooomCourses).filter(([, course]) => {
+            let courseText = course.toLowerCase();
+            courseText = courseText.replace("á", "a");
+            courseText = courseText.replace("é", "e");
+            courseText = courseText.replace("í", "i");
+            courseText = courseText.replace("ó", "o");
+            courseText = courseText.replace("ú", "u");
+
+            return courseText.indexOf(filterText) !== -1;
+        });
+    };
+
+    return (
+        <>
+            {inputElement}
+            <br />
+            <div
+                class="border-c-outline border-l-2 border-b-2 border-r-2
+                    rounded-bl rounded-br overflow-y-scroll h-[10rem]"
+            >
+                <For each={filteredOptions()}>
+                    {([courseKey, courseName]) => (
+                        <button
+                            class="w-full text-left py-1 px-2
+                                   hover:bg-c-primary-container hover:text-c-on-primary-container"
+                            onclick={(ev) => {
+                                ev.preventDefault();
+
+                                selectCourse(courseKey as ClassroomCourseValue);
+                            }}
+                        >
+                            {courseName}
+                        </button>
+                    )}
+                </For>
+            </div>
+        </>
+    );
+}
diff --git a/frontend/src/OnlineClassroom/index.tsx b/frontend/src/OnlineClassroom/index.tsx
index 7d23709..70e2910 100644
--- a/frontend/src/OnlineClassroom/index.tsx
+++ b/frontend/src/OnlineClassroom/index.tsx
@@ -5,6 +5,7 @@ import { FilledCard } from "../components/FilledCard";
 import { ClassroomUserCreation } from "./ClassroomUserCreation";
 import { ClassroomVinculation } from "./ClassroomVinculation";
 import { ClassroomUserCourses } from "./ClassroomUserCourses";
+import { ClassroomRegistration } from "./ClassroomRegistration";
 
 type TabType = "Vinculate" | "Create";
 
@@ -14,19 +15,19 @@ export function OnlineClassroom() {
     return (
         <div class="grid grid-cols-[16rem_25rem_1fr]">
             <Search setPerson={setPerson} />
-            <div>
 
-                <Show when={person() !== null && person()!.person_classroom_id === null}>
-                    <ClassroomUser
-                        person={person()!}
-                        onLink={(classroom_id) => setPerson((p) => ({...p!, person_classroom_id: classroom_id}))}
-                    />
-                </Show>
-                <Show when={person() !== null && person()!.person_classroom_id !== null}>
-                    <ClassroomUserCourses userid={person()!.person_classroom_id!} />
-                </Show>
+            <ClassroomRegistration />
+
+            <Show when={person() !== null && person()!.person_classroom_id === null}>
+                <ClassroomUser
+                    person={person()!}
+                    onLink={(classroom_id) => setPerson((p) => ({...p!, person_classroom_id: classroom_id}))}
+                />
+            </Show>
+            <Show when={person() !== null && person()!.person_classroom_id !== null}>
+                <ClassroomUserCourses userid={person()!.person_classroom_id!} />
+            </Show>
 
-            </div>
         </div>
     );
 }
diff --git a/frontend/src/certs/NewRegister/ManualRegistration.tsx b/frontend/src/certs/NewRegister/ManualRegistration.tsx
index 4804e9e..2769fd6 100644
--- a/frontend/src/certs/NewRegister/ManualRegistration.tsx
+++ b/frontend/src/certs/NewRegister/ManualRegistration.tsx
@@ -3,6 +3,7 @@ import { SearchableSelect } from "./SearchableSelect";
 import { CustomLabelSelect } from "./CustomLabelSelect";
 import { courseMap } from "../../utils/allCourses";
 import { RegistrationPreview } from ".";
+import { customLabelsMap } from "../../utils/allCustomLabels";
 
 type HTMLEventFn = JSX.EventHandlerUnion<HTMLFormElement, Event & {
     submitter: HTMLElement;
@@ -16,7 +17,7 @@ export function ManualRegistration(props: {
     const [count, setCount] = createSignal(0);
     const [error, setError] = createSignal("");
 
-    const [selectedCourseId, seSelectedCourseId] = createSignal<number | null>(null);
+    const [selectedCourseId, setSelectedCourseId] = createSignal<number | null>(null);
     const [customLabel, setCustomLabel] = createSignal("");
     const [isPreview, setIsPreview] = createSignal(false);
 
@@ -65,11 +66,16 @@ export function ManualRegistration(props: {
             return;
         }
 
+        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 data: RegistrationPreview = {
             courseId: subject,
             date,
             customLabel: customLabel(),
             is_preview: isPreview(),
+            custom_label_id,
         };
 
         props.onAdd(data);
@@ -83,7 +89,7 @@ export function ManualRegistration(props: {
             <form onsubmit={register}>
                 <div class="h-52">
                     <SearchableSelect
-                        onChange={seSelectedCourseId}
+                        onChange={setSelectedCourseId}
                         count={count()}
                     />
                 </div>
diff --git a/frontend/src/certs/NewRegister/RegisterPresets.tsx b/frontend/src/certs/NewRegister/RegisterPresets.tsx
index 206f3ff..ebfe5f9 100644
--- a/frontend/src/certs/NewRegister/RegisterPresets.tsx
+++ b/frontend/src/certs/NewRegister/RegisterPresets.tsx
@@ -88,6 +88,7 @@ export function RegisterPresets(props: {
                 date: dateYYYYMMDD,
                 customLabel: "",
                 is_preview: isPreview(),
+                custom_label_id: 1,
             });
 
             // Substract current date for the next course
diff --git a/frontend/src/certs/NewRegister/RegisterPreview.tsx b/frontend/src/certs/NewRegister/RegisterPreview.tsx
index ba3f3ef..cb92775 100644
--- a/frontend/src/certs/NewRegister/RegisterPreview.tsx
+++ b/frontend/src/certs/NewRegister/RegisterPreview.tsx
@@ -26,12 +26,13 @@ export function RegisterPreview(props: {selections: Array<RegistrationPreview>,
 
         await wait(2000);
 
-        const registers: RegisterBatchCreate = props.selections.map(({courseId, date, customLabel, is_preview}) => ({
+        const registers: RegisterBatchCreate = props.selections.map(({courseId, date, customLabel, is_preview, custom_label_id}) => ({
             person_id: props.personId!,
             course_id: courseId,
             date,
             custom_label: customLabel,
             is_preview,
+            custom_label_id,
         }));
 
         const result = await createRegisters(registers);
diff --git a/frontend/src/certs/NewRegister/index.tsx b/frontend/src/certs/NewRegister/index.tsx
index 20f58a1..2e7ca36 100644
--- a/frontend/src/certs/NewRegister/index.tsx
+++ b/frontend/src/certs/NewRegister/index.tsx
@@ -12,6 +12,7 @@ export type RegistrationPreview = {
     date: string,
     customLabel: string,
     is_preview: boolean,
+    custom_label_id: number,
 }
 
 export function NewRegister(props: {
diff --git a/frontend/src/types/ClassroomCourse.ts b/frontend/src/types/ClassroomCourse.ts
index 61ff968..1151c24 100644
--- a/frontend/src/types/ClassroomCourse.ts
+++ b/frontend/src/types/ClassroomCourse.ts
@@ -1,3 +1,48 @@
 export type ClassroomCourse = {
     name: string
 }
+
+export type ClassroomCourseValue =
+| "MATPELNIVEL1"
+| "MATPELNIVEL2"
+| "MATPELNIVEL3"
+| "CAJAEATONFULLER"
+| "CAMIONMINERO797CAT"
+| "ESPACIOSCONFINADOS"
+| "HERRAMIENTASDEGESTION"
+| "IPERC"
+| "MANEJODEFENSIVO"
+| "PREVENCIONDERIESGOSLABORALES"
+| "PREVENCIONYPROTECCIONCONTRAINCENDIOS"
+| "PRIMEROSAUXILIOS"
+| "SBC"
+| "SEGURIDADENLAOPERACION"
+| "SEGURIDADMATPEL123"
+| "SUPERVISORDEALTORIESGO"
+| "SUPERVISORDESEGURIDADMINEROINDUSTRIA"
+| "SUPERVISORESCOLTAMATPEL"
+| "TRABAJOSENALTURA"
+;
+
+
+export const allClassrooomCourses = {
+    "MATPELNIVEL1": "MATPEL 1",
+    "MATPELNIVEL2": "MATPEL 2",
+    "MATPELNIVEL3": "MATPEL 3",
+    "SUPERVISORESCOLTAMATPEL": "SUPERVISOR ESCOLTA - MATPEL",
+    "MANEJODEFENSIVO": "MANEJO DEFENSIVO",
+    "SEGURIDADENLAOPERACION": "SEGURIDAD EN LA OPERACIÓN",
+    "HERRAMIENTASDEGESTION": "HERRAMIENTAS DE GESTIÓN",
+    "CAJAEATONFULLER": "CAJA EATON FULLER",
+    "CAMIONMINERO797CAT": "CAMION MINERO 797 CAT",
+    "ESPACIOSCONFINADOS": "ESPACIOS CONFINADOS",
+    "IPERC": "IPERC",
+    "PREVENCIONDERIESGOSLABORALES": "PREVENCION DE RIESGOS LABORALES",
+    "PREVENCIONYPROTECCIONCONTRAINCENDIOS": "PREVENCIÓN Y PROTECCIÓN CONTRA INCENDIOS",
+    "PRIMEROSAUXILIOS": "PRIMEROS AUXILIOS",
+    "SBC": "SEGURIDAD BASADA EN EL COMPORTAMIENTO \"SBC\"",
+    "SEGURIDADMATPEL123": "SEGURIDAD CON MATERIALES Y RESIDUOS PELIGROSOS - NIVEL 1,2 y 3",
+    "SUPERVISORDEALTORIESGO": "SUPERVISOR DE ALTO RIESGO",
+    "SUPERVISORDESEGURIDADMINEROINDUSTRIA": "SUPERVISOR DE SEGURIDAD MINERO INDUSTRIAL",
+    "TRABAJOSENALTURA": "TRABAJOS EN ALTURA",
+};
diff --git a/frontend/src/utils/allCustomLabels.ts b/frontend/src/utils/allCustomLabels.ts
index f5d4c50..3c02807 100644
--- a/frontend/src/utils/allCustomLabels.ts
+++ b/frontend/src/utils/allCustomLabels.ts
@@ -3,6 +3,7 @@ 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() {