diff --git a/src/error.rs b/src/error.rs
index c232367..4ca9232 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -5,18 +5,20 @@ use thiserror::Error;
 #[derive(Debug, Error, Clone, Copy, PartialEq, Eq, IntoPrimitive)]
 #[repr(u32)]
 pub enum OreError {
-    #[error("The epoch is still active and cannot be reset")]
-    EpochActive = 0,
+    #[error("The start time has not passed yet")]
+    NotStarted = 0,
     #[error("The epoch has ended and needs reset")]
-    EpochEnded = 1,
+    NeedsReset = 1,
+    #[error("The epoch is active and cannot be reset at this time")]
+    InvalidReset = 2,
     #[error("The provided hash was invalid")]
-    InvalidHash = 2,
+    InvalidHash = 3,
     #[error("The provided hash does not satisfy the difficulty requirement")]
-    InsufficientHashDifficulty = 3,
+    InsufficientHashDifficulty = 4,
     #[error("The bus has insufficient rewards to mine at this time")]
-    InsufficientBusRewards = 4,
+    InsufficientBusRewards = 5,
     #[error("The claim amount cannot be larger than the claimable rewards")]
-    InvalidClaimAmount = 5,
+    InvalidClaimAmount = 6,
 }
 
 impl From<OreError> for ProgramError {
diff --git a/src/instruction.rs b/src/instruction.rs
index 43a70c5..a7ec2e8 100644
--- a/src/instruction.rs
+++ b/src/instruction.rs
@@ -73,7 +73,7 @@ pub enum OreInstruction {
     #[account(14, name = "system_program", desc = "Solana system program")]
     #[account(15, name = "token_program", desc = "SPL token program")]
     #[account(16, name = "associated_token_program", desc = "SPL associated token program")]
-    #[account(17, name = "mpl_token_metadata", desc = "MPL token metadata program")]
+    #[account(17, name = "mpl_metadata_program", desc = "MPL token metadata program")]
     #[account(18, name = "rent", desc = "Solana rent sysvar")]
     Initialize = 100,
 
diff --git a/src/processor/mine.rs b/src/processor/mine.rs
index ff622b8..6e80f26 100644
--- a/src/processor/mine.rs
+++ b/src/processor/mine.rs
@@ -19,7 +19,7 @@ use crate::{
     loaders::*,
     state::{Bus, Proof, Treasury},
     utils::AccountDeserialize,
-    EPOCH_DURATION,
+    EPOCH_DURATION, START_AT,
 };
 
 /// Mine is the primary workhorse instruction of the Ore program. Its responsibilities include:
@@ -52,13 +52,18 @@ pub fn process_mine<'a, 'info>(
     load_treasury(treasury_info, false)?;
     load_sysvar(slot_hashes_info, sysvar::slot_hashes::id())?;
 
-    // Validate epoch is active
+    // Validate mining has starting
     let clock = Clock::get().or(Err(ProgramError::InvalidAccountData))?;
+    if clock.unix_timestamp.lt(&START_AT) {
+        return Err(OreError::NotStarted.into());
+    }
+
+    // Validate epoch is active
     let treasury_data = treasury_info.data.borrow();
     let treasury = Treasury::try_from_bytes(&treasury_data)?;
     let threshold = treasury.last_reset_at.saturating_add(EPOCH_DURATION);
     if clock.unix_timestamp.ge(&threshold) {
-        return Err(OreError::EpochEnded.into());
+        return Err(OreError::NeedsReset.into());
     }
 
     // Validate provided hash
diff --git a/src/processor/reset.rs b/src/processor/reset.rs
index 460eb5c..6a8cec5 100644
--- a/src/processor/reset.rs
+++ b/src/processor/reset.rs
@@ -8,7 +8,7 @@ use crate::{
     loaders::*,
     state::{Bus, Treasury},
     utils::AccountDeserialize,
-    BUS_COUNT, BUS_EPOCH_REWARDS, EPOCH_DURATION, MAX_EPOCH_REWARDS, SMOOTHING_FACTOR,
+    BUS_COUNT, BUS_EPOCH_REWARDS, EPOCH_DURATION, MAX_EPOCH_REWARDS, SMOOTHING_FACTOR, START_AT,
     TARGET_EPOCH_REWARDS, TREASURY,
 };
 
@@ -61,13 +61,18 @@ pub fn process_reset<'a, 'info>(
         bus_7_info,
     ];
 
-    // Validate at least 60 seconds have passed since last reset
+    // Validate mining has starting
     let clock = Clock::get().or(Err(ProgramError::InvalidAccountData))?;
+    if clock.unix_timestamp.lt(&START_AT) {
+        return Err(OreError::NotStarted.into());
+    }
+
+    // Validate at least 60 seconds have passed since last reset
     let mut treasury_data = treasury_info.data.borrow_mut();
     let treasury = Treasury::try_from_bytes_mut(&mut treasury_data)?;
     let threshold = treasury.last_reset_at.saturating_add(EPOCH_DURATION);
     if clock.unix_timestamp.lt(&threshold) {
-        return Err(OreError::EpochActive.into());
+        return Err(OreError::InvalidReset.into());
     }
 
     // Record current timestamp