Construction
OSHA Compliant

Every Change Order, Contract & Safety Form — Signed Digitally.

Get change orders, subcontractor agreements, and safety forms signed from the field or office. Zignature gives construction teams mobile-first signing that works on the job site — even with spotty connectivity.

Mobile Job Site Signing — sign change orders and safety forms from any device on-site
Subcontractor Management — automate sub agreements, lien waivers, and insurance certs
Project Document Tracking — real-time status for every document across all projects
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*OSHA compliance, identity verification & regulatory audit trails included with Enterprise plan at $99/mo.

Zignature
Change Orders
SOC 2
Send
Turner-Pacific Construction
3200 Harbor Gateway, Suite 400, Los Angeles, CA 90710
CO #: CO-2026-0847
February 22, 2026
Change Order Authorization Form
1. Project Information

This change order modifies the original contract for the project described below. All work shall be performed in accordance with the original contract documents, applicable building codes, and local jurisdiction requirements as filed with the City of Los Angeles Department of Building & Safety.

2. Change Description

Owner-directed design modification to the structural steel framing system on floors 18-22, including revised connection details per revised structural drawings S-401 through S-418. Additional electrical rerouting and HVAC modifications required to accommodate the revised floor plan layout.

Change Order Details
Project Name
Skyline Tower Phase II
Original Contract
$14,200,000
Change Amount
+$287,500
Reason Code
Owner-Directed Design Change
Cost Breakdown
Effective Date
02/22/2026
CO Number
CO-2026-0847
Net Change
+$287,500.00
Line Item Schedule
Item Category Amount
Structural Steel Structural $142,000
Electrical Reroute MEP $68,500
HVAC Modification Mechanical $52,000
General Conditions Overhead $25,000
Approval Signatures
GC Project Manager
Owner/Rep
Awaiting signature...
Turner-Pacific Construction · Confidential Project Document · Do not distribute Page 1 of 2
OSHA Compliant
Encrypted · Audit Logged
Change Order Progress Complete · OSHA Secured
Zignature
Sub Agreements
Verified
Send
Pacific Ridge General Contractors
1800 Construction Blvd, Dallas, TX 75201
Sub #: PRGC-SUB-2026-0291
February 22, 2026
Master Subcontractor Agreement
Subcontractor Information
Subcontractor Name
Apex Electrical Services LLC
Project
Waterfront Commons Phase III
Trade
Electrical — Division 16
Contract Value
$1,850,000
Agreement Terms
Start Date
03/15/2026
Completion
09/30/2026
Retainage
10%
Insurance Requirements
Coverage Limit Status
General Liability $2M / $4M Verified
Workers' Comp Statutory Verified
Auto Liability $1M CSL Verified
Umbrella $5M Verified
Subcontractor Signature
Pacific Ridge General Contractors · Confidential Subcontractor Document · Do not distribute Page 1 of 3
Insurance Verification
5/5 Complete
GL Policy Verified 2 min
Workers' Comp Active 3 min
Auto Liability Current 1 min
Umbrella Policy Confirmed 2 min
COI on File 1 min
All coverages verified · Expires 03/01/2027 Avg paper process: 5+ days
Subcontractor Management

Streamline Subcontractor Onboarding

Digitize the entire subcontractor onboarding workflow: master agreements, insurance certificate verification, lien waivers, and scope letters. The average GC manages 50+ subcontractors per project — Zignature eliminates the paper chase entirely.

Zignature streamlines every step from initial prequalification through contract execution with mobile-friendly forms, insurance certificate tracking, and automated compliance verification. Subcontractors can sign from any device on-site, project managers can track execution status in real time, and all documents export as PDFs ready for project management systems.

Master subcontract agreements — digital onboarding with automated insurance certificate verification and W-9 collection
Conditional and unconditional lien waivers — progress and final lien waivers tied to payment applications with automatic tracking and expiration alerts
Insurance certificate management — track GL, workers' comp, auto, and umbrella policies with automated expiration reminders and COI verification
Scope letters and work authorizations — issue task-specific work orders and scope modifications with digital sign-off from field supervisors and sub foremen

Did you know? General contractors using digital subcontractor onboarding report 65% faster prequalification and 40% reduction in insurance compliance gaps compared to paper-based processes.

Zignature
Safety Forms
OSHA Logged
Send
Ironclad Safety Solutions
500 Industrial Park Dr, Houston, TX 77032
Report #: ISS-DSR-2026-0482
February 22, 2026
Daily Job Site Safety Report
Site Information
Site Supervisor
Mike Rodriguez, CSP
Project Site
Metro Transit Hub - Phase I
Date
02/22/2026
Weather Conditions
Clear, 72°F, Wind 8mph
Hazard Assessment
Hazard Risk Level Mitigation
Fall Protection High Guardrails + harness
Electrical Work High LOTO procedures
Crane Operations Critical Certified operator req.
Confined Space Medium Permit required
Supervisor Signature
Safety Compliance Status
JHA Complete
PPE Inspected
Toolbox Talk
Ironclad Safety Solutions · Confidential Safety Document · Do not distribute Page 1 of 3
OSHA Compliance Tracker
Q1 2026
JHA Filed
48
Toolbox Talks
126
Inspections
89
OSHA Logged
892
Zero recordable incidents: 147 days
Industry avg: 42 days
Safety Compliance Complete · OSHA Verified
Safety Department

Digitize Safety Documentation

Digitize OSHA-required safety documentation: daily safety reports, toolbox talk attendance, job hazard analyses, incident reports, and inspection logs. Paper safety forms are prone to loss and hard to audit — Zignature creates tamper-evident digital records.

Construction sites generate hundreds of safety documents monthly — from pre-task plans and toolbox talk sign-offs to equipment inspection logs and near-miss reports. Zignature digitalizes the entire safety workflow so site supervisors can complete and sign forms from their phone on the job site. All documents are timestamped, GPS-tagged, and stored with tamper-evident audit trails ready for OSHA inspections or insurance audits.

Daily safety reports and JHAs — mobile-friendly forms with photo attachments, GPS location stamps, and weather condition logging
Toolbox talk attendance and sign-offs — digital attendance tracking with crew member acknowledgment signatures and topic documentation
Incident reports and near-miss logs — OSHA-compliant incident documentation with witness statements, corrective actions, and root cause analysis forms
Equipment inspection and PPE logs — digitize crane inspections, scaffold tags, fire extinguisher checks, and PPE distribution records with compliance-ready audit trails

Did you know? OSHA citations for recordkeeping violations average $15,625 per serious violation. Digital safety documentation reduces citation risk by 70% and cuts safety form completion time from 20 minutes to under 3 minutes per report.

Zignature
Payment Apps
Compliance Ready
Meridian Construction Group
Commercial Division · AIA Contract Documents
App #: MCG-G702-2026-0012
February 22, 2026
AIA G702 Application for Payment
Application Details
Project
Harbor Gateway Mall
Application Period
01/01/2026 — 01/31/2026
Contract Sum
$11,300,000
This Application
$847,500
Schedule of Values (Excerpt)
Description Scheduled Completed This Period
Concrete $2.4M 78% $312,000
Steel Erection $3.1M 65% $248,000
MEP Rough-In $1.8M 42% $187,500
Retainage (10%) ($84,750)
Authorized Signatures
Contractor
Architect/Owner
J. Williams, AIA
Project Architect
Meridian Construction Group · Confidential Financial Document · Do not distribute Page 1 of 3
Lien Waiver Audit Trail
Lien-Ready Tamper-Proof
End-to-End Encryption Active
AES-256-GCM
DOC
LienWaiver_HarborGateway_02222026.pdf
d7f2...a4b8...e1c9...3f5a
SIG
J.Williams_Architect_Signature_02222026
c3e8...92af...b7d1...6e4c
At rest
In transit
TLS 1.3 · FIPS 140-2
Tamper-Proof Audit Trail
Export PDF
Payment Approved
J. Williams (Architect) · Application #12
3:15:42 PM
IP 10.0.4.18 Chrome 122 / macOS SHA-256 verified
Lien Waiver Signed
Meridian CG · Conditional progress waiver
2:08:11 PM
IP 192.168.5.22 Notarized Identity confirmed
SOV Verified
System · Schedule of Values matched to contract
11:30:00 AM
Auto-validated AIA G703 format
Document Integrity Seal
Tamper-Evident Certificate
This payment application has not been modified since execution. Any alteration will invalidate the cryptographic seal and trigger an immediate compliance alert.
Hash verified
Timestamp sealed
Chain intact
Payment Progress Complete · Compliance Ready
Project Finance

Accelerate Payment Applications

AIA G702/G703 payment applications, conditional and unconditional lien waivers, and retainage releases all require multiple signatures across multiple parties. Zignature eliminates the payment cycle bottleneck.

Construction payment cycles average 60-90 days from invoice to payment, with lien waiver collection being the single biggest delay. Zignature enables real-time digital payment application processing where GCs, subcontractors, architects, and owners can all sign from any device. Conditional lien waivers are automatically generated and linked to each pay application, and all documents export as PDFs ready for accounting systems.

AIA G702/G703 payment applications — digitize schedule of values, work completed, and stored materials with automated calculations and architect certification
Lien waiver management — conditional and unconditional progress and final lien waivers with state-specific statutory forms and automated collection workflows
Retainage release agreements — digitize substantial completion certificates and final retainage release with punch list integration and closeout documentation
Sworn statements and affidavits — contractor's affidavit of payment, mechanic's lien waivers, and final payment affidavits with notarization-ready audit trails

Did you know? Construction companies lose an average of $80,000 annually due to slow payment processing and lien waiver collection delays. Digital payment workflows reduce payment cycle times by 45% and eliminate 85% of lien-related disputes.

Use Cases

Construction Use Cases

Zignature serves the full spectrum of construction operations with document workflows tailored to each project type and its unique contractual requirements.

General Contracting

Change orders, RFIs, submittals, pay applications, subcontract agreements, and closeout documents with multi-party signature coordination.

Specialty Trades

Sub agreements, work orders, punch lists, warranty documents, and scope change authorizations for electrical, mechanical, and plumbing contractors.

Heavy Civil

DOT permits, environmental compliance forms, haul tickets, material testing reports, and government contract documentation with prevailing wage compliance.

Residential Building

Purchase agreements, construction contracts, warranty documents, selections sheets, and homeowner walk-through punch lists with buyer signature workflows.

Commercial Development

Lease agreements, tenant improvement contracts, AIA contract documents, construction management agreements, and developer approval workflows.

Infrastructure

Government contracts, prevailing wage certifications, DBE/MBE/WBE forms, bid bonds, performance bonds, and federal compliance documentation.

Zignature also serves general contractors, subcontractors, developers, owners, architects, engineers, construction managers, and design-build firms — any organization that handles construction documents and requires legally binding electronic signatures with compliance-grade audit trails.

Our platform integrates with leading construction management tools including Procore, PlanGrid, Bluebeam, Sage 300 CRE, and Viewpoint Vista — ensuring seamless document workflows across your entire project technology stack.

Built for Construction

The Platform That
Builders Trust

From regional contractors to national construction firms, Zignature powers document workflows with SOC 2 certified security and OSHA-compliant audit trails.

Whether you're a general contractor processing change orders, a specialty trade managing sub agreements, or a developer coordinating payment applications — Zignature adapts to your workflow with templates, automation rules, and compliance controls built specifically for construction.

99.9%
Uptime SLA
256
Bit Encryption
SOC 2
Type II Certified

Job-Site Grade Security

Every document encrypted at rest and in transit with AES-256-GCM. Role-based access controls, IP allowlisting, and SSO integration for enterprise contractor deployments. Data residency options for government project requirements.

OSHA-Ready Audit Trails

Tamper-evident logs for every action with timestamped IP addresses and device fingerprints. Export comprehensive audit reports as inspection-ready PDFs for OSHA compliance reviews, insurance audits, and litigation support.

Identity Verification

Built-in KYC with ID document verification and selfie matching. Verify signer identity for high-value change orders, payment applications, and lien waivers. Supports driver's license, passport, and state ID verification.

Multi-Jurisdiction Compliance

Automatically apply state-specific requirements for lien laws, prevailing wage certifications, and mechanic's lien deadlines. Built-in compliance rules for ESIGN Act, UETA, and state-level construction regulations across all 50 states.

Automated Deadline Tracking

Set up notice requirements, lien filing deadlines, and retainage release dates. Auto-generate compliance documents from templates and send to stakeholders for digital signature — ensuring no critical deadline is missed.

Project Management Integration

Export signed documents as PDFs ready to file into Procore, PlanGrid, Bluebeam, Sage 300 CRE, or any construction management system. API-first architecture for seamless integration with your existing project tech stack.

Zignature
Construction Hub Overview
Live
Export
Projects
24
Active
Documents
3,847
Signed
Change Orders
142
+18% this month
Safety Forms
892
OSHA compliant
Active Projects 4 in progress
Skyline Tower Phase II
Turner-Pacific · $14.2M
72%
Waterfront Commons
Pacific Ridge · $8.7M
45%
Metro Transit Hub
Ironclad Safety · $22.5M
28%
Harbor Gateway Mall
Meridian CG · $11.3M
58%
New CO
Add Sub
Safety Form
Document Types
Change Orders
82%
Sub Agreements
74%
Safety Forms
91%
Pay Applications
68%
OSHA Compliant
SOC 2
256-bit
GC · Subs · Safety · Finance