diff --git a/src/app/warehouse/page.tsx b/src/app/warehouse/page.tsx
index 4523f16..e01a26c 100644
--- a/src/app/warehouse/page.tsx
+++ b/src/app/warehouse/page.tsx
@@ -10,6 +10,12 @@ import { ExtendedArtefact } from "@appTypes/ApiTypes";
 
 import { fetcher } from "@utils/axiosHelpers";
 
+// Function to validate earthquake code format
+const validateEarthquakeCode = (code: string): boolean => {
+	const pattern = /^E[A-Z]-[0-9]\.[0-9]-[A-Za-z]+-[0-9]{5}$/;
+	return pattern.test(code);
+};
+
 // Filter Component
 function FilterInput({
 	value,
@@ -33,14 +39,13 @@ function FilterInput({
 				>
 					<IoFilter
 						className={`cursor-pointer text-neutral-500 font-bold group-hover:text-blue-600
-                    ${!showSelectedFilter && value && "text-blue-600"}
-                    `}
+                ${!showSelectedFilter && value && "text-blue-600"}`}
 					/>
 				</div>
 				<div
 					className={`absolute z-50 mt-2 w-48 bg-white border border-neutral-300 rounded-md shadow-lg p-2 opacity-0 group-hover:opacity-100 group-hover:visible transition-opacity duration-200 pointer-events-none group-hover:pointer-events-auto
-                        ${type === "date" ? "-right-1/2" : "-left-1/2"}
-                        `}
+                    ${type === "date" ? "-right-1/2" : "-left-1/2"}
+                    `}
 				>
 					{options ? (
 						<div className="max-h-32 overflow-y-auto">
@@ -96,6 +101,10 @@ function LogModal({ onClose }: { onClose: () => void }) {
 			setError("All fields are required.");
 			return;
 		}
+		if (!validateEarthquakeCode(earthquakeCode)) {
+			setError("Earthquake Code must be in format: EX-M.M-Country-##### (e.g., EC-3.9-Belgium-05467)");
+			return;
+		}
 		setIsSubmitting(true);
 		try {
 			await axios.post("/api/warehouse/log", {
@@ -107,7 +116,6 @@ function LogModal({ onClose }: { onClose: () => void }) {
 				warehouseLocation,
 			});
 
-			// todo replace with better alert
 			alert(`Logged ${name} to storage: ${warehouseLocation}`);
 			onClose();
 		} catch {
@@ -137,7 +145,7 @@ function LogModal({ onClose }: { onClose: () => void }) {
 					/>
 					<input
 						type="text"
-						placeholder="Type (e.g., Lava, Tephra, Ash"
+						placeholder="Type (e.g., Lava, Tephra, Ash)"
 						value={type}
 						onChange={(e) => setType(e.target.value)}
 						className="w-full p-2 border border-neutral-300 rounded-md placeholder-neutral-400 focus:ring-2 focus:ring-blue-500"
@@ -163,9 +171,8 @@ function LogModal({ onClose }: { onClose: () => void }) {
 					/>
 					<input
 						type="text"
-						placeholder="Earthquake Code"
+						placeholder="Earthquake Code (e.g., EC-3.9-Belgium-05467)"
 						value={earthquakeCode}
-						// todo check code is correct format
 						onChange={(e) => setEarthquakeCode(e.target.value)}
 						className="w-full p-2 border border-neutral-300 rounded-md placeholder-neutral-400 focus:ring-2 focus:ring-blue-500"
 						aria-label="Earthquake ID"
@@ -259,7 +266,6 @@ function BulkLogModal({ onClose }: { onClose: () => void }) {
 				warehouseLocation,
 			});
 
-			// todo replace with better alert
 			alert(`Logged bulk pallet to storage: ${warehouseLocation}`);
 			onClose();
 		} catch {
@@ -362,8 +368,13 @@ function EditModal({ artefact, onClose }: { artefact: ExtendedArtefact; onClose:
 			setError("All fields are required.");
 			return;
 		}
+		if (!validateEarthquakeCode(earthquakeCode)) {
+			setError("Earthquake Code must be in format: XX-M.M-Country-##### (e.g., EC-3.9-Belgium-05467)");
+			return;
+		}
 		setIsSubmitting(true);
 		try {
+			// todo add api route
 			await new Promise((resolve) => setTimeout(resolve, 500)); // Simulated API call
 			alert(`Updated artefact ${name}`);
 			onClose();
@@ -430,7 +441,7 @@ function EditModal({ artefact, onClose }: { artefact: ExtendedArtefact; onClose:
 							type="checkbox"
 							checked={isSold}
 							onChange={(e) => setIsSold(e.target.checked)}
-							className="h-4 w-4 text-blue-600 border-neutral-300 rounded focus:ring-blue-500"
+							className="w-4 h-4 text-blue-600 border-neutral-300 rounded focus:ring-blue-500"
 							aria-label="Sold Artefact"
 							disabled={isSubmitting}
 						/>
@@ -483,7 +494,7 @@ function EditModal({ artefact, onClose }: { artefact: ExtendedArtefact; onClose:
 									<path
 										className="opacity-75"
 										fill="currentColor"
-										d="M4 12a8 8 0 018-8V723C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
+										d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
 									></path>
 								</svg>
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