diff --git a/src/csvToJSON.ts b/src/csvToJSON.ts
index 974faf6..99bab67 100644
--- a/src/csvToJSON.ts
+++ b/src/csvToJSON.ts
@@ -1,9 +1,9 @@
-import { isJunk } from './utils';
-import { csvConfig } from './config';
+import { csvConfig, rejectedParts } from './config';
 const csv = require('csvtojson');
 
 export async function getBOM(csvBOM: string) {
   const rawBOM = await csv(csvConfig).fromString(csvBOM);
-  const bom = rawBOM.filter((part: part) => !isJunk(part));
+  // const bom = rawBOM.filter((part: Part) => !isJunk(part));
+  const bom = rawBOM.filter((part: Part) => !rejectedParts.includes(part.Part));
   return bom;
 }
diff --git a/src/parts.d.ts b/src/parts.d.ts
index c930c7f..4a15509 100644
--- a/src/parts.d.ts
+++ b/src/parts.d.ts
@@ -1,4 +1,4 @@
-enum PartType {
+enum ComponentType {
   R,
   C,
   D,
@@ -7,12 +7,26 @@ enum PartType {
   COMPONENT,
 }
 
-declare interface part {
+enum Potentiometers {
+  VOL = 'VOL',
+  TONE = 'TONE',
+  GAIN = 'GAIN',
+  RES = 'RES',
+  LEVEL = 'LEVEL',
+  DIST = 'DIST',
+  PRESENCE = 'PRESENCE',
+}
+
+declare interface Part {
   Part: string;
-  PartType?: PartType;
   Value: string;
 }
 
+declare interface Component extends Part {
+  Designator: string; //A letter like R, C, D etc
+  ComponentType: ComponentType;
+}
+
 declare interface structuredParts {
   C: {
     [key: string]: string;
diff --git a/src/table.ts b/src/table.ts
index 800aef4..531a4d2 100644
--- a/src/table.ts
+++ b/src/table.ts
@@ -2,7 +2,7 @@ export class PartsTable {
   constructor(
     public htmlTable: HTMLTableElement,
     public headers: string[],
-    public jsonBOM: part[],
+    public jsonBOM: Part[],
   ) {}
 
   //Reset table
diff --git a/src/utils.ts b/src/utils.ts
index 146ad0d..4700a3d 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,9 +1,9 @@
 import { rejectedParts } from './config';
-
-export function isJunk(element: part): boolean {
-  // Returns true if element is in the rejected list
-  return rejectedParts.includes(element.Part);
-}
+// no longer needed
+// export function isJunk(element: Part): boolean {
+//   // Returns true if element is in the rejected list
+//   return rejectedParts.includes(element.Part);
+// }
 
 // TODO
 /*