GAAP earnings for the year equated to $2.56 per share, up $0.59 per share or 30% from the prior year. On an adjusted basis, we reported full year earnings of $2.58 per share, a year-over-year increase of $0.62 per share or 32%. Orders for the year were $1.87 billion, another company record and an increase of $178 million or 11% from the prior year, with a strong momentum in customer demand, consolidated backlog at the end of the year was at an all-time high level of $1.03 billion, an increase of $146 million or 17% from last year. For the rest of my comments, I will focus mostly on comparisons of the fourth quarter of 2023 to the fourth quarter of 2022. Consolidated net sales for the quarter were $448 million, an increase of $57 million or 15%.

Organic sales growth for the quarter was $42 million or 11%. Consolidated operating income in Q4 this year was $63.1 million, up $16.5 million or 35% compared to Q4 last year. Consolidated adjusted EBITDA for the quarter was $77.5 million, an increase of $16.4 million or 27%. That translates to a margin of 17.3%, an increase of 170 basis points from Q4 last year. GAAP EPS for the quarter was $0.75 per share, up $0.18 per share or 32% from Q4 last year. On an adjusted basis, EPS for Q4 this year was $0.74 per share, a year-over-year increase of $0.17 per share or 30%. Orders in Q4 this year were $465 million, up $21 million or 4%, 5%. In terms of our fourth quarter group results, ESG sales were $373 million, an increase of $48 million or 15% compared to Q4 last year.

ESG's adjusted EBITDA for the quarter was $73.3 million, up $15.7 million or 27%. That translates to an adjusted EBITDA margin of 19.6% in Q4 this year, up 190 basis points from Q4 last year. SSG's fourth quarter sales were $75 million this year, up $9 million or 14%. SSG's adjusted EBITDA for the quarter was $16 million, up $2.8 million or 21% from Q4 last year. SSG's adjusted EBITDA margin for the quarter was 21.2%, above the high end of its target range and up 130 basis points from Q4 last year. Corporate operating expenses in Q4 this year were $10 million compared to $10.2 million in Q4 last year. Turning now to the consolidated statement of operations, where the increase in sales contributed to a $22.8 million improvement in gross profit.

Consolidated gross margin for the quarter was 26.6%, up 190 basis points compared to Q4 last year. As a percentage of sales, our selling, engineering, general and administrative expenses for the quarter were up 30 basis points from Q4 last year. During the fourth quarter of this year, we recognized a $1.6 million benefit from acquisition-related activities compared to $500,000 of expense in Q4 last year, with the majority of the year-over-year change driven by a change in the fair value of contingent consideration associated with acquisitions. Other items affecting the quarterly results include a $500,000 increase in amortization expense, a $100,000 increase in other expense and a $100,000 reduction in interest expense. Income tax expense for the quarter was $12.1 million, an increase of $4.7 million from Q4 last year, with the year-over-year change largely due to higher pre-tax income levels and a $700,000 reduction in discrete tax benefits recognized in the current year quarter in comparison to the prior year quarter.

Including discrete tax benefits, our effective tax rate for full year 2023 was 22.5%. For 2024, we currently expect a tax rate of between 25% and 26%, excluding any discrete tax benefits. On an overall GAAP basis, we therefore earned $0.75 per share in Q4 this year compared with $0.57 per share in Q4 last year. To facilitate earnings comparisons, we typically adjust our GAAP earnings per share for unusual items recorded in the current or prior year quarters. In the current year quarter, we made adjustments to GAAP earnings per share to exclude acquisition-related benefits and purchase accounting expense effects. On this basis, our adjusted earnings in Q4 this year were $0.74 per share compared with $0.57 per share in Q4 last year. Looking now at cash flow, where we generated $103 million of cash from operations during the quarter, an increase of $64 million or 162% from Q4 last year, with the increase primarily due to working capital improvements and higher net income.

For the full year, our operating cash generation totaled $194 million, an increase of $123 million or 171% compared to last year. With the improved cash flow, we paid down approximately $70 million of debt during the quarter, ending the year with $238 million of net debt and availability under our credit facility of $493 million. Our current net debt leverage ratio remains low. With our financial position remaining strong, we have significant flexibility to invest in organic growth initiatives, pursue strategic acquisitions and return cash to stockholders through dividends and opportunistic share repurchases. On that note, we paid dividends of $6.1 million during the quarter, reflecting a dividend of $0.10 per share, and we recently announced that we are increasing the dividend by 20% to $0.12 per share in the first quarter of 2024.

We also funded $1.2 million of share repurchases during the quarter. That concludes my comments, and I would like to turn the call over to Jennifer.

Jennifer Sherman: Thank you, Ian. Overall, our fourth quarter results represent an exceptional finish to a record year. Outstanding execution by both groups contributed to the strong Q4 results, which included record net sales and adjusted EPS and an all-time high backlog. We are also pleased to report that adjusted EBITDA margins expanded 170 basis points to 17.3% in the quarter and were slightly above the midpoint of our recently raised target margin range of 14% to 20%. Looking ahead, we remain optimistic about further margin expansion opportunities into 2024 and beyond, driven by a combination of internal efficiency initiatives currently underway, our continued focus on organic growth, planned production increases and value-added M&A.

Within our Environmental Solutions Group and improving supply chain supported higher production levels and with increased sales volumes contributed -- contributions from our recent acquisitions, robust aftermarket demand and strong price realization, we were able to deliver a 15% year-over-year net sales increase and a 27% increase in adjusted EBITDA compared to last year. Despite continued intermittent supply chain issues, we are encouraged by ongoing production improvements across our business units with fourth quarter production at our two largest ESG facilities, up a combined 11% year-over-year and up 6% compared to Q3. We are particularly pleased about the sequential improvement in production compared to Q3 and continue to believe that our large-scale capacity expansions completed in recent years, including our 40% capacity expansion at our Vactor TRUVAC–Gosler [ph] facility in Streator, Illinois, position us well to absorb incremental volumes as supply chains continue to improve.

Our aftermarkets team had another standout quarter, with revenues up 24% over last year with notable strength in used equipment and parts sales. Recall, our acquisition of Joe Johnson Equipment in 2016 marks the onset of a targeted strategy to expand our aftermarket business, and we believe we are starting to reap some of the multiyear benefits associated with that strategic decision. The addition of our rental and used equipment offerings have allowed our teams to target entirely new cohorts of customers for our flagship sewer cleaners, safe digging and street sweeper offerings. The opportunity of purchasing our used equipment at a lower price is an important additional procurement option for industrial contractors in this higher interest rate environment, exemplified by the $12 million year-over-year increase in used equipment sales in Q4.

At the same time, we expanded our parts and service network and in deepening our relationship with existing customers throughout the life cycle of our equipment. In aggregate, aftermarket represented 27% of ESG revenue in Q4 compared to 25% last year. In addition to strong organic growth, our recent acquisitions also contributed with Trackless, our most recent acquisition, continuing its strong start. Acquisitions added approximately $15 million to our top line during the quarter. Our Safety and Security Systems Group again delivered impressive results during the quarter with 14% top line growth and an adjusted EBITDA margin of 21.2%, slightly above the high end of our new SSG margin target range and a 130 basis point improvement compared to last year.

Top line strength was broad-based across our SSG businesses throughout 2023, with sales of public safety equipment, industrial signaling equipment and warning systems each up organically by more than 15% this year. As we have indicated previously, we still expect the addition of a third printed circuit board line to yield further benefits into this year through a combination of cost savings, reduced reliance on offshore suppliers and increased production volumes of public safety equipment. Lastly, we are particularly pleased with our cash conversion in the quarter, having generated $103 million of cash from operations, up 162% from last year. On an annual basis, we continue to target 100% cash conversion levels, which when coupled with a more normalized capital expenditures in the $35 million to $40 million range per year should result in substantial free cash flow generation in 2024 and beyond.

Shifting now to current market conditions. Demand for our products remains rock solid with fourth quarter order intake of $465 million, representing a 5% increase compared to last year. We believe our targeted end market diversification efforts are yielding order strength across both our publicly funded and industrial end markets. Specifically, in the fourth quarter, public revenue orders were up mid-single digits over last year, led by a year-over-year increase in domestic street sweeper orders. Industrial orders were up low single digits year-over-year, primarily led by an increase in orders for dump truck bodies and road marking equipment orders, somewhat offset by lower safe digging truck orders. Looking ahead, we see several internal and external tailwinds continuing to positively impact demand for our products and services.

On the internal front, we remain energized by the market reception of our new product development initiatives, such as our MicroPulse lighting product within our SSG segment, our recently introduced Elgin RegenX Street Sweeper and our growing aftermarket offerings. I'm also pleased to announce that Dr. Scott Rohrbaugh has rejoined the company as our Chief Technology Officer in January. At Federal Signal, Scott previously drove the process that resulted in an acceleration of our safe digging product offerings. Scott also brings additional expertise in new product development for electric and autonomous solutions. Externally, we expect to continue to see benefits from the American Rescue Plan Act in our publicly funded markets, which in 2021, earmarked $350 billion for state, local and territorial governments for a variety of purposes, including the maintenance of essential infrastructure such as sewer systems and Street.

Similarly, we believe the $550 billion bipartisan infrastructure bill to be a substantial opportunity for many of our Federal Signal products and aftermarket offerings as projects begin to come online in the upcoming years. Although, we don't believe the infrastructure bill will have a meaningful impact on our profits in 2024, we are beginning to see examples of the use of our products in early infrastructure projects. These projects include the Atlanta Hartsfield International Airport expansion as well as a lead replacement project in Upstate New York and include the use of our street sweeping and safe digging product offerings. In short, even despite our consistent production increases throughout 2023, lead times for certain products remain extended given the strength in new order trends.

As such, we remain focused on increasing production levels to build more trucks as we aim to reduce current backlog and lead times while continuing to maintain a healthy order intake. Turning to 2024. I am passionate about further improving and building on the successful strategies we have put in place since 2016. We remain committed to our strategic building blocks of operational excellence, organic growth and value-added M&A, all of which would represent the foundation on which we raised our through-cycle EBITDA margin targets on our last earnings call. After codifying our Federal Signal operating system in 2023, which includes our 80:20 programs and lean initiatives, we are planning a phased rollout across our businesses in 2024. The goal of this continuous improvement initiative is to drive incremental efficiency gains, cost savings and process simplification across the organization.

We believe this renewed initiative will provide multiyear benefits to shareholders and customers in the form of reduced lead times and cost savings. Secondly, our team remains laser-focused on executing on our organic growth and new product development pipeline, which includes several electrification projects across the family of Federal Signal vehicle. Orders for our electric sweepers reached a new high point in Q4, and we expect to deliver all of our 2023 electric sweeper orders this year. We're also excited about a host of other electrification projects across the company and will exhibit several of our dump truck body products mounted on electric chassis at the upcoming NTEA Work Truck Show in Indianapolis. In recent weeks, I had the opportunity to attend two other major trade shows, both of which confirmed our view of strong underlying demand for Federal Signal products.

At the wet show in Indianapolis, we showcased a range of vacuum truck products, including our sewer cleaners, guzzler, industrial vacuum trucks and safe digging equipment. Our long-term outlook on the hydro excavation market remains unchanged. We continue to believe that safe digging remains a critical organic growth driver for Federal Signal as adoption and use cases proliferate across North America. At the Asia Trade show in San Diego, the combined MRL and Blasters booth generated substantial customer interest for our road marking and water blasting solutions. In addition to organic growth, we see an array of external levers, including an active M&A pipeline and opportunities to drive future efficiency gains from already completed acquisitions, including Toho, Blasters and Trackless.

Across all of our recently completed acquisitions, we strive to optimize distribution aftermarket parts capture and operational cost reduction initiatives as we fully integrate these businesses into the broader Federal Signal organization. Our latest acquisition Trackless is off to a fantastic start in year 1. To size some of the progress made since the acquisition closed, we are proud to announce that Trackless has grown sales by over 30% in 2023 compared to 2022, having only been under Federal Signal's ownership since April of 2023. Importantly, the integration of Trackless products across our direct sales channel was critical in unlocking that sales growth with sales of Trackless products through our channel more than doubling compared to last year.

The deeper integration between our existing municipal distribution network and Trackless is expected to allow Trackless products to reach entirely new customer cohorts and geographies. In 2024, we plan to further integrate Trackless into our aftermarket platform by scaling rental opportunities, initiative we believe, should yield incremental earnings growth in coming years. While we believe Trackless remains in the early stages of a multiyear growth opportunity, we thought it proved an excellent example of the value we are able to extract after completing acquisitions and integrating businesses into our Federal Signal family. For most acquisitions, key synergies typically span both revenue and costs with major opportunities across distribution, aftermarket optimization and material cost reduction initiatives.

Lastly, as our teams continue to navigate and improving but still fluid supply chain backdrop, we believe we have ample capacity to further scale our output after having completed major facility expansions in recent years. Turning now to our outlook. Conditions in our end markets remain healthy and with ongoing execution against our strategic initiatives and opportunities to drive improved efficiencies, we are confident that we will have another record year in 2024. For the full year, we are expecting net sales of between $1.85 billion and $1.9 billion, double-digit improvement in pre-tax earnings and EBITDA margin performance in the upper half of our new target range. We also currently expect to report adjusted EPS of between $2.85 and $3.05 per share for the year, which would represent a year-over-year increase of between 10% and 18% and the highest EPS level in the company's history.

Our outlook does not include an anticipated tax benefit of approximately $14 million that we expect to realize in Q1 and also assumes continued improvement in production output and a robust aftermarket activity in Q2 through Q4. Lastly, although seasonal effects typically result in Q1 earnings being lower than subsequent quarters given less aftermarket revenue capture and more production slots earmarked for our internal rental fleet, we are expecting Q1 to represent between 19% and 20% of our full year earnings. In closing, I want to express my profound thanks to all of our employees, suppliers and stakeholders for a tremendous 2023 with an active M&A pipeline, ongoing investment in new product development, available capacity, good access to skilled labor and anticipated multiyear tailwinds from infrastructure legislation, our businesses are well positioned for long-term sustainable growth.

With that, we are ready to open the line for questions. Operator?

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